The Complete Homeowner’s Guide to Roofing
This is a reference guide, not a sales page. It answers the questions homeowners actually ask about roofs — what yours is made of, when it needs replacing, what that costs, how insurance really works, and how to tell a good contractor from a bad one. Where we know something, we say it plainly. Where the honest answer is “it depends” or “nobody has proved that,” we say that too.
A note on what we left out. There are figures that get repeated constantly in roofing marketing that we could not find a real source for — a specific wind speed at which shingles fail, how many degrees hotter a dark roof makes your attic, a Georgia statute number that gets cited for the deductible rule. Rather than repeat them, we have said what is actually documented and flagged what is not. If that makes a section shorter than you expected, that is why.
Quick answers
Thirty questions, answered in a sentence or two. Each one links to the fuller answer further down.
- How long does a roof last in Georgia?
- Most asphalt shingle roofs in metro Atlanta are realistically in replacement range somewhere between 18 and 25 years. The National Roofing Contractors Association puts general roof design life at “about 20 years,” and Georgia’s heat and UV load push toward the shorter end rather than the longer one. More
- How do I know if I need a new roof?
- Age past 18–20 years, granules collecting in the gutters, shingles curling or cracking across whole planes rather than in one spot, repeated leaks in different places, daylight visible in the attic, or a sagging roof line. One of these means get it looked at. Three or more usually means replacement. More
- Should I repair or replace my roof?
- Repair if the damage is in one place, the rest of the roof is sound, and the roof has meaningful life left. Replace if the problem repeats across different areas, the shingles are failing everywhere at once, or you are past about 20 years. Age is the single biggest factor. More
- How much does it cost to replace a roof?
- There is no honest single number. Angi’s customer survey puts the national average around $9,600 with a range from roughly $5,900 to $46,000. The Cost vs. Value Report prices a specified 30-square hip roof at $31,871. Both are real; they measure very different jobs. More
- What is a roofing square?
- 100 square feet of roof surface. It is the unit roofers price in, and it measures the roof’s actual sloped surface, not your home’s floor area — so a 2,000 sq ft house does not have a 20-square roof. More
- Does homeowners insurance cover roof replacement?
- It depends entirely on the cause. Sudden accidental damage from a covered peril — wind, hail, a falling tree — is generally covered. Wear, age and deferred maintenance are generally not. Your policy decides, not your roofer. More
- What is the difference between ACV and RCV?
- Replacement cost value pays what it costs to replace the roof with no deduction for age. Actual cash value pays that figure minus depreciation. On the same $15,000 loss with a $1,000 deductible, the insurance regulators’ own example pays $14,000 under RCV and $4,000 under ACV. More
- Can a roofer pay or waive my deductible in Georgia?
- No. The Georgia Attorney General’s Consumer Protection Division states plainly that “in Georgia, roofers are no longer allowed to pay a storm victim’s insurance deductibles,” and warns that accepting the offer can implicate the homeowner in insurance fraud. Treat the offer as a reason to close the door. More
- Can my roofer handle my insurance claim for me?
- Not in Georgia. State law says a residential roofing contractor “shall not represent or negotiate, or offer or advertise to represent or negotiate” on a homeowner’s insurance claim. Only a licensed public adjuster can do that. A roofer can inspect, document and meet your adjuster on the roof. More
- What does hail damage look like on a roof?
- Random, non-directional dents or bruises that feel soft when pressed, with granules knocked loose around them. Dents, ridges and tears are the damage types that actually let water in. Granule loss alone is usually cosmetic. More
- How big does hail have to be to damage a roof?
- Larger than most people assume. In laboratory testing by the Insurance Institute for Business & Home Safety, 1.5-inch hail left every shingle tested — impact-rated or not — rated Good or Excellent. It was at 2 inches that products started separating. More
- Are Class 4 impact-resistant shingles worth it in Georgia?
- Less obviously than in Texas or Colorado. IBHS found impact-rated shingles indistinguishable from ordinary ones at 1.5-inch hail, and only polymer-modified products performed well at 2 inches. Ask your insurer what discount, if any, they actually give before paying the upgrade. More
- How long does a roof replacement take?
- One day for most ordinary single-family homes, two to three for larger, steeper or more complex roofs, and longer if significant decking has to be replaced or weather interrupts. Tear-off and installation usually happen the same day. More
- Do I have to be home during a roof replacement?
- No. You need to be reachable by phone in case something is found that changes the scope, but you do not need to be on site. Most people leave for the day, because it is genuinely loud. More
- What happens if they find bad decking?
- Rotten or delaminated plywood can only be found once the old shingles come off, so it is priced as a per-sheet add-on rather than included. Get the per-sheet price in writing before work starts, and ask for photographs of every sheet replaced. More
- Why do my roofing estimates vary so much?
- Usually because they are not the same job. Tear-off versus layover, how much decking is assumed, whether flashing is replaced or reused, shingle line, underlayment type, ventilation work and warranty tier all move the number. Compare the scope, not the total. More
- What should a roofing estimate include?
- Square count, tear-off and disposal, underlayment type, shingle make and line, flashing to be replaced, ventilation work, the per-sheet decking price, warranty terms, payment schedule, and who pulls the permit. If it is one line and one number, it is not an estimate. More
- Do roofers need a license in Georgia?
- Not a state roofing license — there is no such thing. Georgia’s licensing board lists roofing as a specialty trade exempt from the residential and general contractor license. Local business licensing, permits, liability insurance and workers’ compensation still apply. More
- What insurance should my roofer carry?
- General liability and workers’ compensation, both current, both verified by you directly with the insurer rather than from a certificate the contractor hands you. This is the single most expensive thing to get wrong. More
- Is a roofer knocking on my door after a storm a scam?
- Not always, but Georgia’s Attorney General advises skepticism toward uninvited post-storm roof salesmen and warns that some have used a “free inspection” as an opportunity to cause damage. Never sign anything at the door. More
- Why are there granules in my gutters?
- A small amount is normal, especially in the first months after installation. Steady accumulation from an older roof, with bare black patches visible on the shingles, means the shingle is losing its UV protection and is near the end. More
- What causes black streaks on my roof?
- A cyanobacterium called Gloeocapsa magma. It is a cosmetic problem, not a structural one, and it thrives in warm humid shade — which is most of metro Atlanta. It does not mean you need a new roof. More
- Can I pressure wash my roof?
- No. The asphalt shingle manufacturers’ own trade association says to use a bleach-and-water solution with a gentle rinse and explicitly warns against power washers, brushes and brooms. Pressure washing strips granules and shortens the roof’s life. More
- Can I put a new roof over my old one?
- Sometimes legally, rarely wisely. A layover hides the decking so nobody can see what is underneath, adds weight, traps heat, and usually shortens the new roof’s life. It also makes the next tear-off more expensive. More
- What is the difference between 3-tab and architectural shingles?
- 3-tab is a single flat layer with cut-out tabs. Architectural — also called dimensional or laminate — bonds two layers together, so it is thicker, heavier, usually better wind-rated and more expensive. Architectural is now the default on most new residential roofs. More
- Why is roof ventilation important?
- Because inadequate ventilation cooks the underside of your shingles and traps moisture in the attic. The shingle manufacturers’ association says it causes premature roofing failure, and most manufacturer warranties exclude damage caused by it. More
- Is drip edge required in Georgia?
- Yes. Georgia’s adopted residential code requires drip edge at both eaves and rakes, in minimum 26-gauge corrosion-resistant metal, overlapped at least two inches and fastened no more than twelve inches apart. It is one of the easiest things to check yourself from the ground. More
- What is the best time of year to replace a roof in Georgia?
- Autumn, on balance — mild temperatures help shingles seal properly without the scuffing risk of a July roof deck. But Georgia’s winters are mild enough that roofs go on year-round here, and waiting on an active leak is worse than any seasonal trade-off. More
- Does a new roof pay for itself when I sell?
- No, on the published numbers. The 2025 Cost vs. Value Report puts asphalt shingle roof replacement at 68% of cost recouped at resale, and metal at 50%. A new roof removes an objection and helps a house sell — it does not return what you spent. More
- How often should I have my roof inspected?
- Twice a year is the National Roofing Contractors Association’s recommendation, plus after any significant storm. In metro Atlanta that usually means spring, after the March-to-May severe weather window, and again in autumn once the leaves are down. More
What is in this guide
Understanding your roof
Most homeowners never think about the roof until it does something alarming. This section is the baseline: what is up there, how long it is supposed to last, and what the words mean.
How long does a roof last?
Most asphalt shingle roofs last about 20 years. The National Roofing Contractors Association states that “most new roofs are designed to provide useful service for about 20 years,” and an independent survey of home component life expectancy put asphalt shingles at 20 years as well. Slate, clay tile and some metals last considerably longer. Actual life depends on ventilation, installation quality, weather exposure and maintenance.
That number surprises people, because shingles are sold as “30-year” and “50-year” products. Those names refer to warranty terms, not service life. A 30-year shingle is a shingle with a 30-year limited warranty attached, and as you will see in the warranty section, that warranty covers considerably less than the name implies.
The honest way to think about it: 20 years is the planning number. Some roofs go 25 or more, particularly if they are well ventilated, installed properly and not baking under full southern exposure. Some are finished at 15, usually because of a ventilation problem, a bad installation, or a storm that took years off them in an afternoon.
| Material | Expected life |
|---|---|
| Asphalt shingles | 20 years |
| Wood shakes | 30 years |
| Fiber cement | 25 years |
| Simulated slate | 50 years |
| Slate | 50+ years |
| Clay and concrete tile | “Lifetime” |
| Copper | “Lifetime” |
| Aluminum gutters | 20 years |
| Copper gutters | 50+ years |
Source: NAHB Economics Group, Study of Life Expectancy of Home Components, February 2007. This is a survey of manufacturers and trade associations, it is now nearly two decades old, and it does not separate 3-tab from architectural shingles. We include it because it is one of the few lifespan datasets that is not a manufacturer’s marketing page — but treat it as a broad guide, not a promise. The study’s own caveat: life expectancy “depends on local weather conditions, proper building and design, material quality, and adequate maintenance.”
Why we could not give you a 3-tab versus architectural lifespan
You will find pages everywhere stating that 3-tab lasts 15–20 years and architectural 25–30. We looked for an authority behind those numbers and could not find one. NRCA gives a single figure for roofs generally. The NAHB survey gives one figure for “asphalt shingles” without separating the types. Every tiered figure we found traced back to a manufacturer’s marketing or a contractor’s blog.
What is defensible: architectural shingles are physically thicker, heavier and generally carry better wind ratings than 3-tab, and it is reasonable to expect more life from them. How much more, nobody has published credibly. We would rather tell you that than make up a number.
Does a roof last as long in Georgia as it does elsewhere?
Probably not quite. Asphalt shingles degrade under UV radiation, extreme heat and thermal cycling, and Atlanta delivers all three — three months a year with normal high temperatures at or above 87°F, and a July normal high of 90.1°F. Research at the National Institute of Standards and Technology confirms these exposures compromise a shingle’s ability to withstand mechanical loads over time.
Here is the important caveat: NIST identified the mechanism but published no quantified relationship between temperature and lifespan. So while we can say with confidence that Georgia heat ages shingles, nobody can honestly tell you it costs exactly three years or five. Anyone who gives you a precise figure for that is guessing.
What this means practically in metro Atlanta: plan around the lower half of the 20-year band rather than the upper half, get the ventilation right because that is the one variable you control, and do not assume a 25-year-old roof that “looks fine from the ground” is fine.
What are the parts of a roof called?
From the top down: shingles, underlayment, and decking, all sitting on rafters or trusses. Around the edges are the drip edge, fascia and soffit. Where planes meet you have ridges, hips and valleys. Anywhere something penetrates the roof — a chimney, a pipe, a wall — there is flashing. Almost every leak is a flashing problem, not a shingle problem.
The full vocabulary is in the glossary, but these are the ones worth knowing before you read an estimate:
- Decking (also sheathing) — the plywood or OSB sheets nailed to the rafters. Everything else sits on this. If it is rotten, it has to be replaced, and it cannot be assessed until the old roof comes off.
- Underlayment — the layer between decking and shingles. Traditionally asphalt-saturated felt; now often synthetic. It is the backup water barrier.
- Flashing — metal that seals the joints where the roof meets something else. Step flashing at walls, counter flashing over it, valley metal where planes meet, pipe boots around vents.
- Drip edge — metal at the eaves and rakes that directs water into the gutter instead of behind it. Required by code in Georgia.
- Ridge and hip — the ridge is the horizontal peak; hips are the sloping external corners. Both get cap shingles.
- Valley — the internal corner where two planes meet. Valleys carry the most water on the roof and fail more often than open field shingles.
- Soffit and fascia — the underside of the overhang and the vertical board at its edge. Soffit vents are where intake air enters the attic.
What is a roofing square, and how many does my house have?
A roofing square is 100 square feet of roof surface. It is the unit contractors estimate and price in. Critically, it measures the sloped surface of the roof, not your home’s floor area — so a 2,000 square foot house does not have a 20-square roof. Pitch, overhangs and complexity all add surface area.
Rough way to get there yourself: take the footprint of the house including overhangs, then multiply by a pitch factor. A low 4/12 pitch adds roughly 5%; a steep 12/12 adds over 40%. A 2,000 sq ft single-story home on a 6/12 pitch with overhangs is commonly somewhere around 24 to 26 squares. A two-story home of the same floor area has a much smaller roof, because the footprint is half.
This matters when you compare quotes. If one contractor says 24 squares and another says 30 on the same house, one of them has measured wrong or is including waste differently, and that is worth asking about before you look at the price.
What is roof pitch and how do I measure it?
Pitch is the roof’s steepness, expressed as vertical rise over 12 inches of horizontal run. A 6/12 pitch rises six inches for every twelve inches across. You can measure it from inside the attic by holding a level against a rafter, marking 12 inches along it, and measuring straight down to the rafter at that mark.
Pitch drives cost in three ways: it adds surface area, it slows the crew down, and past about 8/12 it usually requires fall protection and sometimes roof jacks, which adds labor. It also affects what materials are allowed. Georgia’s adopted code requires two layers of underlayment on slopes between 2½:12 and 4:12, and a single layer applied shingle-fashion at 4:12 and steeper.
What does a roof inspection involve?
A proper inspection covers the roof surface, the flashings at every penetration, the valleys, the ridge and hip caps, the drip edge, the gutters, and — this is the part that gets skipped — the attic from underneath. Attic inspection is where you find active leaks, inadequate ventilation, daylight through the decking and moisture damage that is invisible from above.
What an inspector is actually looking for: granule loss and bare spots, curling or cupping shingles, cracked or missing shingles, nail pops, damaged or improperly installed flashing, deteriorated pipe boots, soft decking underfoot, sagging between rafters, evidence of previous repairs, and whether the intake and exhaust ventilation are balanced.
If someone inspects your roof and never goes into your attic, they have done half an inspection.
How often should a roof be inspected?
Twice a year. The National Roofing Contractors Association recommends inspecting twice yearly to catch damaged shingles, loose seams and deteriorated flashings before they cause serious damage. Add an inspection after any significant storm, regardless of when the last one was.
In metro Atlanta the natural rhythm is spring and autumn. Spring, because the severe weather window here runs March through May — the National Weather Service office covering this area records large hail on an average of seven days a year, peaking in April, and tornado days concentrated in March, April and May. Autumn, because that is when the leaf and pine straw load comes down into the valleys and gutters.
Is a free roof inspection really free?
Usually yes, and the business model is straightforward — the contractor is buying a chance to quote the work. What you should insist on is that the report is yours to keep whether you hire them or not. If a company will only tell you what they found on condition that you sign something, that is not an inspection, it is a sales call.
The Georgia Attorney General’s Consumer Protection Division adds a caution worth repeating: “Some unscrupulous roofers have used a ‘free inspection’ as an opportunity to cause damage to homeowners’ roofs.” That is an argument for choosing who goes up there, not for skipping inspections. Call someone whose name you found, rather than someone who found you.
What is normal wear versus actual damage?
Normal wear is gradual, uniform and expected: slow granule loss across the whole roof, slight color fading, mild weathering at the edges. Damage is sudden, localised or patterned: creased shingles from wind, random dents from hail, a cracked pipe boot, lifted tabs along one exposed plane. The distinction matters because insurance covers damage and does not cover wear.
The practical test most adjusters apply: can this be traced to a specific event on a specific date? A roof that has gradually given up over 22 summers cannot. A roof with directional creasing on the southwest-facing plane after a documented storm can.
We could not find an insurance authority that publishes a formal rule for how adjusters draw this line — we looked at the Insurance Information Institute, the National Association of Insurance Commissioners and IBHS, and none of them state one. In practice it is judgement, which is exactly why documentation with dates matters so much.
How do I find out how old my roof is?
Four places to look, in order of reliability: the permit record at your county building department, the seller’s disclosure from when you bought, the previous owner’s paperwork or warranty registration, and the shingle manufacturer’s date codes on a sample shingle. A roofer can also estimate age from wear characteristics, though that is a read rather than a record.
The permit record is the strongest because it is a dated municipal document, and it also tells you whether the work was permitted at all — which is worth knowing separately.
Why is roof ventilation important?
Because a poorly ventilated attic cooks your shingles from underneath and traps moisture. The Asphalt Roofing Manufacturers Association states that inadequate ventilation may cause “premature failure of the roofing system,” along with shingle buckling, wood rot and moisture accumulation. It is also excluded from most manufacturer warranties, meaning a ventilation problem can void the coverage you paid for.
Ventilation works as a system: cool air enters low, at the soffits, and warm air exits high, at the ridge. Both halves have to exist. ARMA’s guidance is that intake should provide 50 to 60 per cent of the open venting area and exhaust 40 to 50 per cent — intake always exceeding exhaust.
The most common mistake we see, and it is usually invisible from the ground. A ridge vent installed with no soffit intake, or with soffit intake that has been blocked by insulation. The International Institute of Building Enclosure Consultants is blunt about the consequence: without intake, “the ridge vent is basically ineffective. Or worse, the exhaust vents could lead to warm, moist air from the house’s interior being pulled into the attic, which could be problematic.” Exhaust without intake is not merely useless — it can actively pull conditioned, humid air out of your house and into the attic.
How much attic ventilation do I need?
The base requirement in the residential code is one square foot of net free ventilating area for every 150 square feet of attic floor. A 1:300 ratio is permitted as an exception, but it has to be earned — it requires the correct vapour retarder conditions and 40 to 50 per cent of the ventilating area located in the upper portion of the attic, with the remainder in the bottom third.
This gets stated backwards constantly. You will read that “code requires 1:300.” It does not. 1:300 is the exception; 1:150 is the rule. If your contractor is designing to 1:300, the placement condition has to be met.
Note that “net free area” is not the same as the physical size of the vent — it is the effective open area after the screen and baffle are accounted for, and the manufacturer publishes it for each product.
Ridge vent, turbines, box vents or a powered attic fan — which is best?
Ridge vent is generally the best exhaust for a roof that has a continuous ridge, because it vents along the entire peak where the hottest air collects and it is invisible from the ground. Box vents and turbines work but vent only their immediate area. Powered attic fans are the contentious one: they move a lot of air, but if intake is inadequate they can pull conditioned air out of the house instead.
Two rules matter more than the choice of product. First, do not mix exhaust types on the same attic space — a ridge vent plus box vents plus a turbine will short-circuit, pulling air in through one exhaust and out of another instead of drawing it from the soffits. Second, whatever exhaust you use, the intake has to be there and has to be open.
On powered fans specifically: they solve a symptom rather than a cause. If an attic is too hot, the usual reasons are blocked or missing soffit intake and insufficient insulation, and a fan does not fix either. Get the passive system right first.
Repair or replace?
This is the question almost everybody arrives with. The answer is usually clearer than people expect, once you know what the symptoms actually mean.
How do I know if I need a new roof?
Look for six things: age past 18–20 years, granules collecting steadily in the gutters with bare patches showing on the shingles, curling or cracking across whole planes rather than in one spot, leaks appearing in more than one place, daylight visible through the decking in the attic, and any sagging in the roof line. One of these means get it inspected. Three or more usually means replacement.
Taking them in turn, because the reasoning matters more than the list:
- Age. The strongest single predictor. A 22-year-old roof that looks acceptable is still a 22-year-old roof, and it will not improve.
- Granule loss with bare spots. Granules are the shingle’s UV shield. Once they are gone in patches, the asphalt underneath starts breaking down fast.
- Curling or cupping across whole planes. Isolated curling near a vent is a local problem. Curling across an entire south-facing slope is the shingle mat failing.
- Repeat leaks in different places. One leak is a repair. Three leaks in three locations over two years is a roof telling you something.
- Daylight through the decking. If you can see light in the attic, water is getting in too.
- A sagging roof line. This is structural, not cosmetic, and it needs attention promptly.
Should I repair or replace?
Repair when the damage is confined to one area, the rest of the roof is in good condition, and the roof has meaningful life left. Replace when the same failure is appearing in multiple places, the shingles are deteriorating across the whole roof, or the roof is past roughly 20 years. Age is the deciding variable more often than the damage itself.
A useful way to frame it: a repair on a roof with eight years left is money well spent. The same repair on a roof with two years left is money spent twice, because you will pay for it again inside the replacement, and the repair patch will not match anyway.
The financial line most contractors use informally is that when a repair approaches 25–30 per cent of replacement cost on an older roof, replacement is usually the better decision. That is a rule of thumb, not a law, and it should be pressure-tested against how much life the rest of the roof actually has.
Worth knowing: telling a homeowner that a roof only needs a repair costs the contractor the larger sale every time. That is exactly why it is worth asking directly — “if this were your house, would you repair it?” — and why an answer that always comes back “replace” regardless of the roof deserves a second opinion.
Can you replace just one section of a roof?
Technically yes, and sometimes it is the right call — a single slope damaged by a fallen limb on an otherwise healthy roof, for example. But the new section will not match the old one in color, because shingles weather, and the two sections will then age on different schedules. Partial replacement is a compromise, not a solution.
Where it genuinely makes sense: a detached garage, a porch roof, or one plane on a roof that is otherwise young. Where it usually does not: patching a plane on a fifteen-year-old roof to defer the inevitable.
Why are there granules in my gutters?
Some granule loss is normal, particularly in the first few months after a new roof when loose manufacturing granules wash off. Persistent accumulation from an older roof is different — it means the shingle is shedding its UV protection, and you will usually see corresponding bare, darker patches on the roof surface. That is a roof approaching the end of its service life.
The distinction that matters is where and how much. A cup of granules from a new roof after the first heavy rain is normal. A steady stream from a fifteen-year-old roof, with visible bald patches, is not.
Separately, do not treat granules in the driveway as proof of hail damage. IBHS testing found that hailstones “often will dislodge granules but are not hard enough to crush them,” and that granule loss scored uniformly well across products while dents and ridges were the genuinely damaging outcome. Granule loss is the cosmetic signal; dents, ridges and tears are the functional one.
Why are my shingles curling?
Curling happens when the shingle mat dries out and shrinks, and it is driven mainly by age, heat and inadequate attic ventilation. Cupping at the edges and clawing in the middle are the two patterns. If it is across a whole plane, particularly the one with the most sun, it is age and heat. If it is localised, check ventilation and what is underneath.
Curled shingles matter because they break the seal that holds the tab down, and once the seal is broken the shingle is exposed to wind uplift. A curled roof is a roof that loses shingles in the next storm.
What actually causes roof leaks?
Most leaks are not shingle failures. The common sources, roughly in order: cracked or deteriorated pipe boots, failed flashing at walls and chimneys, valleys, nail pops, ice or debris damming water behind an obstruction, and damaged or missing shingles. The rubber pipe boot is the single most frequent culprit, and it fails long before the shingles around it do.
This is why “the roof is only twelve years old, it can’t be leaking” is not a safe assumption. The shingles may have a decade left while the pipe boot that was installed with them has already split.
Why is there a water stain on my ceiling, and is it definitely the roof?
Not necessarily. A ceiling stain can come from the roof, from plumbing in the floor or wall above, from an HVAC condensate line, or from condensation in a poorly ventilated attic. The way to tell: roof leaks usually appear or worsen during and after rain, plumbing leaks do not follow the weather, and condensation shows up as diffuse damp rather than a defined stain with a ring.
Two things worth knowing. First, water travels — it can enter at a flashing twenty feet away, run along a rafter, and drop through the ceiling somewhere entirely unrelated. The stain marks where it landed, not where it got in. Second, a dry, well-defined stain with a brown ring is a historical leak; a soft, expanding, damp stain is an active one.
How urgent is a roof leak? Can it wait?
An active leak should be tarped within days, not weeks. The water itself is rarely the expensive part — the expensive part is what it does to decking, insulation, framing and drywall while you wait, and the mold risk in a humid climate. A leak that costs a few hundred to fix in week one can cost several thousand by month three.
If it is actively dripping right now: put a container under it, move anything valuable, and if there is a bulging wet patch in the ceiling, pierce it deliberately with a small hole over a bucket. A controlled drip is far better than a ceiling collapsing under the weight of pooled water. Then call someone.
Are missing shingles an emergency?
Not usually an emergency, but not something to leave either. A missing shingle exposes the underlayment, which is a water barrier but not a roof covering and will not last long under UV. Get it replaced within weeks rather than months. If several are gone in a patch, or the underlayment itself is torn, that is more urgent.
After a storm, missing shingles are also evidence. Photograph them, with the date, before anybody fixes anything — see documenting damage.
Is a sagging roof dangerous?
It can be, and it is the one symptom on this page that warrants prompt attention rather than monitoring. Sagging means the structure underneath is deflecting — rotted decking, a failed rafter, an undersized or damaged truss, or accumulated water load. A dip between rafters is a decking problem. A dip in the ridge line itself is a structural one.
This is not a wait-and-see item. Have it looked at, and if the sag is in the ridge or is visibly worsening, have it looked at soon.
Does algae on my shingles mean I need a new roof?
No. Black streaking is caused by a cyanobacterium and is cosmetic. It does not shorten the roof’s life in any documented way and it is not a reason to replace shingles that are otherwise sound. In metro Atlanta’s humidity and tree cover it is close to universal on north-facing and shaded slopes.
The full answer, including what to do about it, is in the maintenance section.
Is moss on my roof a problem?
Moss is a genuine problem in a way algae is not. It holds moisture against the shingle, its rhizoids work under the edges and lift them, and the retained damp accelerates deterioration of both shingle and decking. Algae stains; moss lifts. Moss should be removed — carefully — and the conditions that caused it addressed.
Moss means persistent shade and persistent damp, which in this area usually means overhanging branches. Removing the moss without thinning the canopy above it just buys you a couple of years.
How do I know if my roof has storm damage?
From the ground, look for missing or visibly lifted shingles, granules washed into a pile at the downspout, dents in soft metal — gutters, downspouts, vents, the fins on your air conditioner — and debris impact. Inside, check the attic for new daylight or damp. Metal is the tell: hail that dents an aluminum gutter has very likely bruised the roof too.
Air conditioner fins are the best diagnostic most people have and almost nobody checks. They are soft aluminum at ground level, and if they are dimpled, hail of a meaningful size fell on your property. That is evidence with a location attached.
Can I put a new roof over my old one?
Sometimes it is permitted, and it is almost always a bad idea. A layover means nobody inspects the decking, so rot stays hidden. It adds weight, traps heat against the new shingles, telegraphs the old surface’s irregularities through the new one, and makes the eventual tear-off more expensive because there are two layers to remove and dispose of.
The savings are real but smaller than people expect — you save the tear-off labor and disposal, which is a minority of the job — and you give up the one opportunity you get to see what your roof is actually sitting on. Whether it is allowed at all depends on your jurisdiction’s adopted code and how many layers are already up there, so check with your county building department before assuming.
What if my shingles are discontinued and can’t be matched?
This is more common than people expect, because manufacturers retire color lines regularly and even a current line weathers away from its factory color within a couple of years. A repair on a ten-year-old roof will be visible. Options are to accept the mismatch, to source the closest current match, or to pull shingles from a less visible slope to patch a visible one and use the new shingles where they show least.
This also has an insurance dimension. Whether an insurer must replace undamaged sections to achieve a uniform appearance is the “matching” question, and it varies by policy language and by state. Some policies commit to “like kind and quality” without promising color. We could not find a published Georgia position on matching — a fifty-state survey we checked does not list Georgia at all — so this is a read-your-policy item rather than a rule we can state.
Should I replace my roof before selling?
Usually not purely for the money. The 2025 Cost vs. Value Report puts asphalt shingle roof replacement at 68% of cost recouped at resale. Replacing a sound roof to add value loses money. Replacing a failing roof to remove a deal-killing inspection finding is a different calculation, and often worth it.
The practical middle ground many sellers take: get the roof inspected before listing, fix what is genuinely broken, and have the written report available for buyers. A documented roof with known issues priced into the deal beats a surprise on the inspection report three days before closing.
Roof repair near you
If you think your roof needs a repair rather than a replacement, see what that looks like in your town: roof repair in Woodstock, Canton, Holly Springs, Acworth, Kennesaw, Marietta, Dallas, Powder Springs, Smyrna, Hiram, Cartersville, Alpharetta, Austell. Or start with our roof repair page.
What a roof costs
The most-asked question and the worst-answered one. Here is what the credible sources actually say, why they disagree, and what moves the number on your house.
How much does a roof replacement cost?
There is no single honest number, and the two most credible published sources differ by a factor of three because they measure different jobs. Angi’s customer survey puts the national average at $9,608, with a range of $5,902 to $46,000 and a per-square-foot band of $4 to $11. The Cost vs. Value Report prices a fully specified 30-square hip roof replacement at $31,871.
Both figures are real. The difference is scope, and understanding it is the single most useful thing in this section.
| Angi | Cost vs. Value Report | |
|---|---|---|
| Figure | $9,608 national average ($5,902–$46,000 range) |
$31,871 job cost |
| What it measures | Self-reported project costs from a survey of over 30,000 customers, across all roof sizes and scopes | One specified job: 30 squares, full tear-off to bare sheathing, 235-lb fibreglass shingles, new underlayment, drip edge, aluminum flashing, custom flashing at two skylights, vented ridge cap |
| Use it for | A sense of the spread across real households | A benchmark for a large, fully specified job |
| Treat as | A lead-generation platform’s customer survey — it publishes a methodology, which puts it above most, but it is self-reported | An industry cost survey with a published, fixed specification |
What this means for you: a quote is only comparable to another quote for the same scope. A 30-square complex roof with skylights, full flashing replacement and a premium shingle is a fundamentally different purchase from an 18-square simple gable with a builder-grade shingle, and a national average does not distinguish between them.
What does a roof cost in Georgia specifically?
We could not find a Georgia or Atlanta figure from any source with a published methodology, and we are not going to invent one. Every Georgia-specific number we found was on a roofing company’s own marketing page, which is a number with an interest attached. What we can tell you is what drives the figure on your house, and how to make quotes comparable.
If you want a working range before anyone visits, the roof cost calculator on this site will get you to a ballpark and show what it looks like spread over time. It is an estimator, not a quote. The number that matters is the one written down after somebody has been on your roof.
What actually drives the price?
Size first, then complexity, then material, then what is found underneath. Squares set the baseline. Pitch, valleys, hips, dormers, skylights and chimneys drive labor. Shingle line and warranty tier move materials. Decking replacement, ventilation correction and flashing work are the variables that turn a quoted number into a final number.
- Squares. The baseline unit. More surface, more everything.
- Pitch. Steeper is slower and needs fall protection past roughly 8/12.
- Complexity. A simple gable is fast. Every valley, hip, dormer, skylight and chimney is cut work and flashing work.
- Tear-off versus layover. Removing and disposing of the old roof is real labor and real landfill cost.
- Number of existing layers. Two layers to remove costs roughly twice the tear-off of one.
- Decking. Priced per sheet, and unknowable until the old roof is off. See below.
- Shingle line. 3-tab to architectural to designer is a meaningful step at each level.
- Underlayment. Felt versus synthetic, and how much ice-and-water membrane goes in valleys and around penetrations.
- Flashing. Replacing all flashing costs more than reusing it. Reusing it is also how roofs leak in year three.
- Ventilation. Correcting an unbalanced system means cutting ridge vent and opening soffit intake.
- Access. Where the dumpster can go, whether a truck can reach the house, how much landscaping has to be protected.
- Warranty tier. An enhanced manufacturer warranty requires specified accessories and a certified installer, and costs more.
Why do my roofing estimates vary so much?
Almost always because they are not quoting the same job. One includes full flashing replacement and the other reuses it. One prices synthetic underlayment, the other felt. One assumes ten sheets of decking, the other assumes none. One is a certified installer quoting an enhanced warranty. Until you line the scopes up side by side, the totals are not comparable numbers.
The second reason, less comfortable but real: some quotes are low because something is being left out that you will pay for later, and some are high because the company’s overhead is higher. Neither is automatically dishonest. The way to find out is to ask each contractor to explain a specific difference, not to explain their price in general.
How to actually compare three quotes. Make a table with one row per line item — squares, tear-off, number of layers, underlayment type, ice-and-water locations, shingle make and line, flashing (new or reused), pipe boots, ventilation work, decking per-sheet price, permit, cleanup, workmanship warranty length, manufacturer warranty tier, payment schedule. Fill in all three columns. The differences will be obvious, and so will the questions worth asking.
What should a roofing estimate include?
Square count and how it was measured, tear-off and disposal, the number of existing layers, underlayment type, the shingle manufacturer and product line, which flashings are being replaced rather than reused, ventilation work, the per-sheet price for replacement decking, permit responsibility, cleanup, both warranties with their terms, the payment schedule, and start and completion dates.
An estimate that is one line and one number is not an estimate. It is a price with no way to hold anyone to anything, and it is the reason most roofing disputes start.
What happens if they find bad decking, and why does it cost extra?
Decking condition cannot be assessed until the old shingles are off, so it is priced as a per-sheet add-on rather than included in the base quote. Rotted or delaminated sheets have to be replaced — new shingles nailed to soft plywood will not hold. What you should insist on is the per-sheet price agreed in writing before work starts, and photographs of every sheet replaced.
This is the single most common source of homeowner-contractor conflict, and it is worth understanding why the structure is legitimate even though it feels like a bait-and-switch. Nobody can see through shingles. Quoting decking replacement blind would mean either padding every quote with contingency that most homeowners do not need, or absorbing an unknowable cost.
What is not legitimate: a vague “decking extra if needed” with no price, a sheet count you cannot verify, or a number that appears for the first time on the final invoice. Three questions protect you completely:
- What is the price per sheet, in writing, before you start?
- Will you photograph each sheet you replace, in place, before it is covered?
- At what point do you stop and call me rather than continuing?
How much of a roof’s cost is labor versus materials?
We could not find a credible published split, and the honest answer is that it varies enormously with pitch, complexity and material. A steep, cut-up roof with a basic shingle is labor-heavy. A simple gable with a designer shingle and full ice-and-water is material-heavy. Any contractor quoting you a fixed percentage is quoting a rule of thumb, not a measurement.
How do people pay for a new roof?
Four common routes: cash or savings, an insurance claim where the damage is covered, a home equity loan or line of credit, or contractor-arranged financing. Each has a different cost. Home equity borrowing is usually the cheapest money available to a homeowner; contractor financing is fastest but the rate is the thing to read carefully.
On our own financing: we are still finalising a lending partner, so we cannot quote you real terms yet, and the estimator on this site uses example figures only. We would rather say that plainly than advertise terms we cannot deliver. Ask us when we come out and we will tell you exactly where it stands.
What if I can’t afford a new roof right now?
Deal with the leak, not the roof. A targeted repair to stop water entry is dramatically cheaper than a replacement and buys you time to plan. Get a written inspection that tells you honestly how long the roof has left, so you are budgeting against a real horizon rather than a sales pitch. Then look at home equity borrowing, which is usually the cheapest option available.
There are also assistance routes worth checking depending on circumstance — county and municipal home repair programs, weatherisation assistance, and programs aimed at older homeowners and veterans. Availability changes constantly and varies by county, so we are not going to list programs that may have closed. Your county’s community development office is the right first call, and it costs nothing to ask.
What not to do: let it keep leaking. Water damage compounds, and the eventual bill includes decking, insulation, drywall and sometimes framing on top of the roof you were already going to need.
Does a new roof increase home value?
It recovers most but not all of its cost. The 2025 Cost vs. Value Report puts asphalt shingle roof replacement at 68% of cost recouped at resale and metal at 50%. Neither pays for itself. What a new roof reliably does is remove an objection — it stops the roof being the thing that delays or kills a sale, and it takes the negotiation off the table.
For appraisal specifically: appraisers generally treat a roof as a condition item rather than an improvement. A new roof helps a home appraise at the top of its range rather than the bottom; it does not add its cost to the valuation.
Is the cheapest quote a red flag?
Not automatically, but it deserves a specific question rather than a general suspicion: what is in the other quotes that is not in this one? Low prices come from genuinely lower overhead, from a smaller scope, from reused flashing and skipped ventilation work, or from a crew that is uninsured. Only one of those is good news, and asking will usually reveal which.
The Georgia Attorney General’s consumer guidance recommends getting written bids from at least three contractors and three references from customers with similar projects. That is sound, and the references matter more than most people use them.
Materials, ratings and warranties
This is where the marketing is thickest. Wind ratings, impact classes and “lifetime” warranties all mean something specific and technical — and considerably less than the brochures suggest.
3-tab, architectural, or designer — what is the difference?
3-tab is a single flat layer of shingle with cut-outs that create the tab pattern. Architectural — also called dimensional or laminate — bonds two layers together, producing a thicker, heavier shingle with a textured look and generally better wind performance. Designer or luxury shingles are heavier still, shaped to imitate slate or shake. Architectural is the default on most new residential roofs.
Practical differences beyond appearance: architectural shingles are heavier, which helps them stay put; they usually carry higher wind classifications; and they hide minor deck irregularities better. 3-tab remains cheaper and is still specified on rentals, outbuildings and budget jobs.
We are not going to tell you architectural shingles last ten years longer than 3-tab, because as covered in the lifespan section, no authority publishes separate figures. It is reasonable to expect more from the thicker product. How much more is not documented.
Metal roof or shingles — which is better?
Metal costs substantially more up front and lasts substantially longer. The Cost vs. Value Report prices metal roof replacement at $51,865 against $31,871 for asphalt shingle on the same specified job — roughly 1.6 times the cost. Metal makes sense if you intend to stay a long time or want the look. Asphalt shingle remains the right answer for most metro Atlanta homes.
On the lifespan claim: the widely repeated “metal roofs last 60+ years” figure comes from a Metal Construction Association study of unpainted 55% aluminum-zinc coated steel standing seam on low-slope roofs. It is an industry-association study, it does not establish 60 years for residential painted standing seam, and it says nothing at all about exposed-fastener panels — which are a different and shorter-lived product. Treat the 60-year number as applying to a specific system, not to metal generally.
Three metal roof myths
- “Metal roofs are loud in the rain.” A residential metal roof is installed over solid decking and underlayment, often with an attic and insulation below. The barn-roof noise people imagine comes from metal over open purlins with nothing underneath.
- “Metal roofs attract lightning.” Metal is conductive, not attractive to lightning. A metal roof does not make a strike more likely, and if one occurs it disperses the energy across a broad non-combustible surface rather than igniting.
- “A metal roof makes the house hotter.” Metal reflects more solar radiation than dark asphalt and sheds heat faster once the sun is off it. In a cooling-dominated climate it is generally the cooler choice, not the hotter one.
What does a shingle’s wind rating actually mean?
It is a laboratory classification, not a survival guarantee. Two standards exist. ASTM D3161 blows air across the shingle for two hours: Class A is 60 mph, Class D is 90 mph, Class F is 110 mph. ASTM D7158 uses an uplift-force method and its classes are Class D at 115 mph, Class G at 150 mph and Class H at 190 mph.
Two things the marketing does not tell you, both from the roofing industry’s own technical people:
First, the D3161 standard itself states that “the results of this test do not directly correlate to wind speeds experienced in service.” Written into the standard. A Class F shingle is not a shingle that survives 110 mph winds on your house.
Second, the two standards are not interchangeable. The asphalt shingle manufacturers’ association notes that D3161 runs for two hours “despite building codes basing requirements on three-second gusts,” while D7158’s values “can be directly compared to code prescribed three-second gust design wind speeds.” D7158 is the code-comparable standard. D3161 is not. If someone quotes you a D3161 number as though it maps to the wind speed in your area, it does not.
What actually determines wind performance on your roof: the nailing pattern. Manufacturer wind warranties are conditional on installation method — GAF’s enhanced coverage, for example, requires four nails per shingle plus starter strips at eaves and rakes to reach its higher wind figure, and drops to a lower figure without them. The rating on the wrapper is a ceiling. The installation decides whether you get near it.
What is a Class 4 impact-resistant shingle, and is it worth it in Georgia?
Class 4 is the top rating under UL 2218, awarded when a shingle withstands two strikes of a 2-inch steel ball at each test location with no tearing, fracturing or cracking visible on the back. It does not mean hailproof. Whether it is worth the upgrade in Georgia is genuinely arguable, and the honest answer depends on what your insurer will discount.
The UL 2218 classes are defined by steel ball diameter: Class 1 is 1.25 inches, Class 2 is 1.5, Class 3 is 1.75, Class 4 is 2 inches. Granule crushing and dents are not failures under the test — only an opening visible on the back of the shingle is.
Now the finding that most Class 4 marketing leaves out. The Insurance Institute for Business & Home Safety tested 22 asphalt shingle products against laboratory hailstones and found that at 1.5-inch hail, every product — impact-rated and not — rated Good or Excellent. The impact-rated upgrade bought nothing measurable at that size. It was only at 2-inch hail that products separated, and there only polymer-modified asphalt products achieved Good or Excellent among the impact-rated group. IBHS’s own conclusion: “not all impact-resistant shingles are designed equally.”
So the Georgia calculation is different from the Colorado one. If your insurer offers a meaningful, durable premium discount for Class 4, the maths may work. If they do not, you are paying a real premium for a benefit that IBHS’s testing suggests only materialises above 1.5-inch hail. Ask your carrier for the actual discount in dollars before you decide, and ask whether the product is polymer-modified.
What do fire ratings mean?
Class A, B and C under ASTM E108 / UL 790 describe performance against severe, moderate and light fire exposure respectively. Class A is the highest. The test suite includes intermittent flame exposure, flame spread, a burning brand dropped on the assembly, a flying brand test and a rain test. Most modern fibreglass asphalt shingles are Class A.
Felt or synthetic underlayment — does it matter?
Synthetic is lighter, stronger, less prone to tearing around fasteners, safer to walk on and holds up far better if it is exposed to weather before the shingles go on. Felt is cheaper and has decades of history behind it. For most roofs synthetic is the better product, and the price difference is small relative to the job.
Where it genuinely matters: if there is any chance the deck will sit exposed — a multi-day job, a weather delay, a large roof — synthetic is meaningfully more reliable. Felt wrinkles when it gets wet and can telegraph through the finished shingles.
Georgia’s adopted code sets layer requirements by slope: roofs between 2½:12 and 4:12 require two layers of underlayment; 4:12 and steeper require a minimum of one layer applied shingle-fashion. Check your estimate says which you are getting.
Do I need ice and water shield in Georgia?
Not for ice dams — that is a northern problem. But the membrane is still worth having in the places water is most likely to get in: valleys, around chimneys and skylights, at wall intersections and around pipe penetrations. In this climate it functions as wind-driven-rain protection rather than ice protection, and that is a real risk here.
A reasonable specification for a metro Atlanta roof is ice-and-water membrane in all valleys and around every penetration, with synthetic underlayment across the field. If a quote includes it nowhere, ask why.
Is drip edge required in Georgia, and what should it look like?
Yes, and the requirements are specific. Georgia’s adopted residential code requires drip edge at both eaves and rakes, in minimum 26-gauge galvanised steel, aluminum or equivalent corrosion-resistant metal — vinyl and plastic are not permitted. It must extend at least ¼ inch below the fascia and 2 inches onto the roof deck, be fastened no more than 12 inches on center, and overlap adjacent sections by at least 2 inches with the upper piece over the lower.
There is one detail worth knowing because it is the most common installation error: at the eaves the drip edge goes under the underlayment; at the rakes it goes over. Reversed, water runs behind the metal instead of into the gutter.
We should flag an inconsistency honestly. A FEMA fact sheet on sloped roof systems instructs installing eave drip edge above the underlayment, which is the opposite of the residential code sequence. FEMA’s document addresses public facilities in high-wind regions, so the contexts differ — but if you see the two instructions and they conflict, that is why. Your local building department’s adopted code governs your house.
This is one of the few things you can check yourself, from the ground, with your own eyes. Look along the edge of your roof. There should be a visible metal edge at the bottom and along the sloping gable edges.
What types of flashing are there, and why do they matter so much?
Step flashing runs up a wall in overlapping pieces, one per shingle course. Counter flashing sits over it, usually let into a chimney’s mortar joints. Valley metal lines the internal corners. Apron flashing sits at the base of a wall or chimney. Pipe boots seal vent penetrations. Kickout flashing diverts water away from the wall where a roof edge meets it. Most leaks happen at flashings, not at shingles.
The one that causes the most damage when it is missing is kickout flashing. Without it, water running down a roof-to-wall junction goes straight behind the siding, and the damage accumulates inside the wall for years before anything shows on a ceiling.
When you read an estimate, look for whether flashing is being replaced or reused. Reusing old flashing under a new roof is one of the most common ways to save money on a quote, and one of the most common reasons a new roof leaks.
What is a chimney cricket and do I need one?
A cricket is a small peaked structure built on the up-slope side of a chimney to divert water around it instead of letting it pool against the masonry. Without one, a wide chimney creates a dam that traps water, leaves and pine straw, and that is one of the most reliable ways to produce a chimney leak. Residential code requires one on chimneys above a certain width.
If you have a wide chimney on a slope and no cricket, look at what collects behind it after autumn. A wet, packed line of debris across the back of the chimney is the problem announcing itself. This is worth raising specifically when you get quotes, because adding a cricket during a reroof is far cheaper than adding one later.
What is a pipe boot and why do they leak?
A pipe boot is the collar that seals around a plumbing vent pipe where it passes through the roof. The traditional version has a rubber gasket that sits against the pipe, and rubber degrades under UV. It typically cracks and fails well before the shingles around it do — which is why a twelve-year-old roof can leak at a vent while the rest of the roof is fine.
If you are having a roof replaced, all pipe boots should be replaced too, and it is worth asking whether they are using standard rubber or a longer-life alternative. This is a small line item that prevents a very common leak.
Manufacturer warranty versus workmanship warranty — what is the difference?
The manufacturer’s warranty covers defects in the shingles themselves. The contractor’s workmanship warranty covers installation errors. They are entirely separate, and the second one is usually the one that matters, because manufacturing defects are rare and installation errors are not.
A manufacturer warranty is worth very little if the company that installed your roof is gone in three years, because a leak caused by bad flashing is not a product defect and the manufacturer will not pay for it.
What does a “lifetime” shingle warranty actually mean?
Your lifetime as the owner of that house, not the roof’s lifetime and not the building’s. CertainTeed states it directly: “A lifetime warranty means coverage for as long as you, as an individual homeowner, own your home—not for the life of the home.” Coverage typically applies only to single-family detached residences owned by individuals, transfers once, and drops sharply if transferred late.
The detail from GAF’s own legal warranty document is worth reading in full if you are buying on the strength of the warranty, but the headlines are:
- “Lifetime” means as long as the original owner owns the property. It transfers once, and the second owner must notify the manufacturer in writing within one year.
- Transfer after the first 20 years reduces coverage to a two-year prorated period.
- Coverage prorates over time. Reimbursement reduces by elapsed time against the total warranty term.
- It applies only to single-family detached residences owned by individuals.
What voids a shingle warranty?
More than most homeowners realize. The common exclusions are damage from acts of nature including hail and winds above the rated speed, structural movement and settlement, inadequate ventilation, ice damming, algae discoloration on non-treated products, color fading and chipping, and use of another manufacturer’s products in the system.
The clause almost nobody reads. GAF’s limited warranty states that it “will not take effect unless all eligibility requirements have been satisfied, this warranty is registered to you, and your roofing contractor has been paid in full.” A payment dispute with your contractor can leave you with no manufacturer warranty at all. Two practical consequences: register the warranty yourself rather than assuming it was done, and keep any payment dispute separate from warranty registration.
Note also that inadequate ventilation is an exclusion. This connects directly to the ventilation section — a contractor who installs a ridge vent without opening soffit intake has potentially created the condition that voids your coverage.
What does a “manufacturer-certified” roofer mean?
Manufacturers run contractor programs with tiers — GAF’s Master Elite, Owens Corning’s Preferred, and equivalents. Certification generally requires the company to meet criteria around licensing, insurance, training and time in business, and it unlocks enhanced warranty products that non-certified contractors cannot offer. It is a real signal, but it is a program, not an independent accreditation.
What it genuinely tells you: the company has met the manufacturer’s criteria and can offer warranties that include workmanship coverage backed by the manufacturer rather than just by the contractor. What it does not tell you: that any individual crew will do good work on your house. Use it as one input alongside references and a physical look at recent local jobs.
Does shingle color matter in Georgia’s heat?
Somewhat, and less dramatically than the marketing suggests. The Department of Energy states that a cool roof can reduce a single-story building’s annual air conditioning energy use by up to 15%, and that a cool-color roof on a home can cut 5 to 20% from cooling costs, with the greatest savings in hot and warm climates. Cool asphalt shingles “cost about the same as conventional asphalt shingles.”
Atlanta is a strong candidate for that benefit — three months a year with normal highs at or above 87°F and a July normal high of 90.1°F. The DOE also notes a winter heating penalty from reflecting sunlight, but observes that “even in mixed climates, winter penalties can be smaller than summer savings.”
What we will not give you is a number for how much hotter a dark roof makes your attic. The DOE’s consumer guide deliberately does not publish degree figures for roof surface or attic temperature, and we could not find a credible source that does. Anyone quoting you “a dark roof makes your attic 40 degrees hotter” is quoting something they did not measure.
The practical takeaway: color is mostly an aesthetic and resale decision. If two colors you like equally differ in solar reflectance, take the lighter one. Do not let anyone sell you a color on the promise of a specific energy saving.
Do algae-resistant shingles actually work?
They help, and the honest answer is that the evidence base is thinner than you would expect. Manufacturers add copper or zinc-bearing granules and warrant against algae discoloration for a defined period on labeled products. But the asphalt shingle industry’s own current standards document lists no consensus algae-resistance test at all, which means the claims rest on proprietary manufacturer programs rather than an industry pass/fail standard.
One correction worth making because the industry repeats it: ASTM D7897 is frequently cited as “the algae test.” It is not. D7897 is a standard practice for laboratory soiling and weathering to simulate effects on solar reflectance and thermal emittance — a reflectance standard, not an algae one.
In metro Atlanta, where humidity and tree cover make streaking close to inevitable on shaded slopes, an AR-labeled shingle is a reasonable default choice. Just read what the warranty on it actually covers and for how long, rather than assuming “algae resistant” means “will not streak.”
What actually happens during a roof replacement
Nobody tells you the practical things — how loud it is, whether you can work from home, what happens to your flower beds, whether your pictures will fall off the walls. Here is the day, honestly.
How long does a roof replacement take?
One day for most ordinary single-family homes. Two to three days for larger, steeper or more complex roofs, or where significant decking has to be replaced. Tear-off and installation usually happen on the same day — the roof is not left open overnight unless something goes wrong. Weather delays are the main variable.
What extends it: multiple existing layers to remove, a steep pitch requiring fall protection, extensive decking replacement discovered mid-job, complex flashing work around chimneys and skylights, and rain.
What happens, step by step?
Protection goes down first, then the old roof comes off, the decking is inspected and repaired, underlayment and ice-and-water membrane go on, drip edge and flashing are installed, shingles are laid from the eaves up, ridge and hip caps and ventilation finish it, and the site is cleaned with a magnet sweep. A final inspection and the paperwork close it out.
- Setup and protection. Tarps over landscaping, plywood against windows and siding where needed, dumpster positioned.
- Tear-off. Old shingles, underlayment and old flashing come off down to bare decking. This is the loud part.
- Deck inspection. Every sheet is walked and checked. Soft, rotted or delaminated sheets are marked for replacement. This is when you should get a call if the count is significant.
- Decking repair. Bad sheets replaced, gaps addressed, loose sheathing re-fastened.
- Drip edge at the eaves, then underlayment and ice-and-water membrane in valleys and around penetrations, then drip edge at the rakes over the underlayment.
- Flashing. Valley metal, step and counter flashing at walls and chimneys, kickout flashing, new pipe boots.
- Starter course and shingles, laid from the eaves upward, nailed to the manufacturer’s pattern.
- Ridge and hip caps, ridge vent cut and installed, soffit intake verified open.
- Cleanup. Debris removed, gutters cleared of tear-off debris, magnet sweep of the yard and driveway.
- Final walkthrough and paperwork — invoice, warranty registration, permit close-out, photographs.
Do I have to be home during a roof replacement?
No. You need to be reachable by phone, because decisions occasionally have to be made mid-job — most commonly about decking replacement — but you do not need to be present. Most homeowners leave for the day. The crew does not need access to the inside of the house unless attic work is part of the scope.
Can I stay in the house while it happens?
Yes, it is safe. Whether it is pleasant is another question. A tear-off directly overhead is genuinely loud — hammering, nail guns, compressors, and debris sliding down into a dumpster. If you work from home, take calls elsewhere. If you have an infant, a night-shift worker, or a noise-sensitive pet, plan to be out.
How loud is it, really?
Loud enough that a normal video call is difficult and a phone call is unpleasant. Tear-off is percussive and constant, and it is transmitted through the structure rather than just through the air, so closing a door downstairs helps less than you would hope. Plan the day around it rather than hoping to work through it.
How should I prepare my home?
Move vehicles out of the driveway and away from the house, take down or secure anything hanging on walls directly below the roof, clear patio furniture and grills from around the perimeter, cover anything stored in the attic, and tell the crew about anything fragile — landscaping you care about, a septic field, an irrigation system, a gate that must stay closed for a dog.
- Vehicles. Out of the driveway and away from the drip line. Falling debris and nails are the risk.
- Walls. Vibration travels. Mirrors, framed pictures and anything on a hook in an upstairs room is worth taking down.
- Attic. Cover stored belongings with sheeting. Dust and small debris come through the gaps between decking sheets during tear-off — this catches people out every time.
- Perimeter. Patio furniture, grills, potted plants, garden ornaments, anything under the eaves.
- Pets and children. Keep them inside or off site. There will be nails and debris on the ground during the day.
- Access. Tell them where the dumpster can and cannot go, and about irrigation heads, septic lids and soft ground.
Do I need to cover things in my attic?
Yes, and it is the preparation step most often skipped. Decking sheets have small gaps between them, and tear-off shakes decades of dust, old nail fragments and shingle grit loose from above. It falls straight through. Anything stored in the attic that you care about should be under plastic sheeting before the crew arrives.
Will they damage my landscaping?
A careful crew protects it and a careless one does not, and this is a fair thing to ask about specifically before you hire. The usual protection is tarps over beds and shrubs, plywood leaning against the house where debris will slide, and controlled tear-off into a dumpster rather than free-falling material. Damage happens most often to things nobody was told about.
Practical step: walk the perimeter with the crew lead before they start and point at what matters. A Japanese maple you planted for your mother is not obviously different from a shrub to someone who has never seen your garden.
Will the dumpster damage my driveway?
It can, and it is worth discussing before the truck arrives. A loaded roofing dumpster is heavy, and the risk is cracking on older or thinner concrete and gouging on asphalt in summer heat. Plywood or planking under the wheels and load points is the standard mitigation. If you would rather it went on the street or the lawn, say so in advance.
What happens to the old shingles?
They go into a dumpster and then to a landfill or, in some markets, to an asphalt shingle recycler where they are ground and used in road paving. Disposal cost is a real line item — a tear-off produces several tons of material — and it is part of why tear-off costs more than a layover.
What happens if it rains during my roof replacement?
Work stops and the roof gets dried in. Crews watch the forecast and generally will not tear off more than they can cover before the weather arrives. If rain comes unexpectedly, exposed decking is covered with underlayment or tarps. The risk of interior water damage is real but manageable, and a competent crew plans tear-off around it.
What you should ask before the job: how much roof do you open at once, and what is the plan if weather comes in? A crew that tears off the entire roof at 8am on a day with afternoon storms in the forecast is taking a risk with your ceilings.
Can roofers work in the rain?
Shingles should not be installed on a wet deck. The adhesive strips need clean dry contact to seal, trapped moisture under underlayment causes problems later, and a wet roof is genuinely dangerous to walk. Light drizzle at the end of a job is different from installing through rain. If someone is shingling in steady rain, that is a reason for concern, not efficiency.
Should I replace my gutters at the same time?
If they are near the end of their life, yes — the access is already there, the drip edge and the gutter interact, and doing both at once is cheaper than doing them separately. If your gutters are sound, no. Tear-off does not require removing gutters, though debris will need cleaning out of them afterwards.
Ask specifically whether cleaning tear-off debris out of the gutters is included. Shingle grit and nail fragments end up in there on every job, and it is a small thing that gets left undone.
What happens to my gutter guards?
Depends on the type. Screens and mesh that sit under the first shingle course generally have to be lifted or removed during tear-off and reinstalled afterwards. Snap-in and drop-in guards can often stay. This is a question to ask before the job, because reinstallation is labor and it should be in the scope if it is expected.
What happens to my solar panels during a roof replacement?
They have to come off and go back on, and that is a separate job from the roofing, usually done by a solar company rather than the roofer. Budget for it as its own line item, book it around the roofing schedule, and check whether removal affects your solar warranty or monitoring contract before anyone touches the array.
The sequencing matters and it catches people out. The panels come off, the roof is done, then the array goes back — which means coordinating two companies around the same weather window. Ask both for their lead times before you commit to a date.
If your roof is within a few years of needing replacement and you are considering solar, replace the roof first. Putting a twenty-five-year array on a roof with five years left guarantees you pay for removal and reinstallation.
Should I replace my skylights at the same time?
If they are more than about fifteen years old, yes. Skylight flashing is integrated into the roof surface, so replacing a skylight later means disturbing a new roof to do it. The access, the flashing work and the labor are all already happening, which makes doing it now substantially cheaper than doing it separately.
Even if you keep the skylights, the flashing kit around them should be new. Reusing old skylight flashing under new shingles is a common shortcut and a common leak. Ask specifically whether new flashing kits are in the quote.
What happens to satellite dishes and roof-mounted equipment?
Anything bolted through the roof has to come off for tear-off and go back afterwards, and every one of those mounting holes is a potential leak. Agree in advance who removes and reinstalls a satellite dish, and understand that most roofers will reinstall it but will not realign it — that is the provider’s job.
If you no longer use the dish, this is the moment to have it removed entirely and the penetrations properly sealed under the new roof. It is free while the roof is open and it removes a permanent leak risk.
Will there be nails in my yard afterwards?
There will be nails on the ground during the job, and a proper cleanup uses a rolling magnet over the yard, driveway and beds to collect them. No magnet sweep gets 100% — expect to find the occasional nail for a few weeks, particularly in mulch and grass where the magnet cannot reach. Ask how many passes they do.
How do I know the roofers did a good job?
From the ground: straight, even shingle courses; consistent exposure; clean cut lines at valleys and rakes; visible new drip edge at eaves and gables; new flashing and pipe boots rather than reused ones; ridge cap laid neatly and vent cut cleanly. In the attic: no daylight, no new damp, and soffit intake vents that are open rather than blocked.
Ask for photographs of the decking before it was covered, and of any sheets replaced. Ask to see the ridge vent cut. Ask whether soffit intake was verified. A contractor who is proud of the work will have the photographs already.
What are the signs of a bad roofing job?
Uneven or wavy courses, inconsistent shingle exposure, shingles overhanging the drip edge by too much or too little, reused flashing with old sealant smeared over it, tar or caulk used where flashing should be, a ridge vent with no soffit intake, nails driven through shingle faces, and debris left in gutters. Any of these is worth raising before final payment.
Caulk is not flashing. The most common shortcut in residential roofing is sealing a joint with roofing cement instead of installing metal. It looks fine for two years and then fails, usually somewhere you cannot see. If you can see black sealant smeared around a chimney or a wall junction on a brand-new roof, ask what is underneath it.
What paperwork should I have at the end?
A final invoice showing what was actually done including any decking added, the manufacturer’s warranty registration confirmation in your name, the contractor’s written workmanship warranty, the closed-out permit if one was required, photographs of the decking and any hidden work, and a lien waiver confirming suppliers and subcontractors have been paid.
The lien waiver is the one most homeowners have never heard of and it matters. If your contractor does not pay their materials supplier, that supplier can in some circumstances place a lien against your property even though you paid the contractor in full. A signed waiver is your protection against paying twice.
When is the best time of year to replace a roof?
In Georgia, autumn on balance. Moderate temperatures let shingle adhesive strips seal properly without the softness and scuff risk of working on a July roof deck, and the weather is generally settled. But Georgia’s winters are mild enough that roofs go on year-round here, and no seasonal preference outweighs an active leak.
The trade-offs by season, in this climate specifically:
- Spring. Fine, but it overlaps the severe weather window. Scheduling can get disrupted, and demand spikes after storms.
- Summer. Workable but hard. A dark roof deck in July with a normal high around 90°F is brutally hot, shingles are soft and scuff more easily underfoot, and crews need more breaks. Work tends to start very early.
- Autumn. The sweet spot. Mild, generally dry, shingles seal well.
- Winter. Entirely feasible in Georgia. Adhesive strips seal more slowly in the cold and may need warm days afterwards to fully bond, but our winters rarely stop work for long.
One scheduling note that is worth more than the seasonal advice: after a significant hail or wind event, every roofer in the affected counties is booked and out-of-town crews arrive. If your roof can wait until that surge passes, you will get better attention. If it cannot, get it tarped now and scheduled properly later.
Insurance and storm damage
The most consequential section on this page, and the one where bad information costs the most money.
Read this first. Nothing in this section is legal or insurance advice, and none of it can tell you what your policy covers. Coverage depends on the specific policy you hold, its endorsements and exclusions, and the facts of your loss. Your insurance carrier is the only party who can tell you what you are covered for. What follows explains the concepts and the terminology so that the conversation with your carrier is one you can follow.
Does homeowners insurance cover roof replacement?
It depends on what caused the damage, not on the damage itself. Sudden, accidental damage from a covered peril — wind, hail, a falling tree, fire — is generally covered. Gradual deterioration, age, wear and deferred maintenance are generally not. This is the distinction every roof claim turns on, and it is why a 22-year-old roof that finally starts leaking is usually not an insurance matter.
The second variable is how the policy pays. That is the ACV versus RCV question below, and on an older roof it can be the difference between most of a new roof and a fraction of one.
Does insurance cover a leaking roof?
Often not, and this surprises people. If the leak is the result of a covered event — wind lifted shingles, hail punctured the roof, a branch came through — the resulting damage is generally covered. If the leak is because the roof is old and worn out, it usually is not, because wear is not a peril. Resulting interior water damage may be treated differently from the roof itself.
Will insurance cover a 20-year-old roof?
Increasingly on restricted terms, and sometimes not at all. Carriers have been moving older roofs from replacement cost to actual cash value settlement, and applying roof-age schedules that pay a depreciated amount based on the roof’s age and material. Some carriers now non-renew policies over roof age. Read your declarations page and any roof endorsement before you need it.
One documented example of how this works in practice: one major national carrier’s program switches roof coverage from replacement cost to actual cash value at ten years of roof age, and publishes a roof payment schedule setting out what a roof is worth by age and type. The detail that is genuinely useful and rarely mentioned: those schedules commonly apply only to wind and hail losses. Other perils, such as fire, may still be settled at full replacement cost.
This is the single best argument for reading your own policy rather than relying on general articles including this one. The clause is usually called a roof surfacing payment schedule, a roof settlement endorsement or similar. If you cannot find it, your agent can point to it in about thirty seconds.
What is the difference between ACV and RCV?
Replacement cost value pays the cost to repair or replace the damaged property without deducting for depreciation. Actual cash value pays that cost minus depreciation — the reduction in value from age and wear. The National Association of Insurance Commissioners gives a worked example: on identical $15,000 roof damage with $1,000 deductibles, the RCV policy pays $14,000 and the ACV policy, with $10,000 of depreciation, pays $4,000.
Depreciation is calculated from three things: the condition of the property at the time of loss, the replacement cost of a new item, and the item’s expected lifespan. A fifteen-year-old roof with a twenty-year expected life has lost most of its value on that arithmetic, regardless of how well it was performing the day before the storm.
| RCV policy | ACV policy | |
|---|---|---|
| Roof damage | $15,000 | $15,000 |
| Depreciation applied | None | $10,000 |
| Deductible | $1,000 | $1,000 |
| Insurer pays | $14,000 | $4,000 |
| Homeowner covers | $1,000 | $11,000 |
Source: National Association of Insurance Commissioners, July 2021. Figures are the NAIC’s illustration, not an estimate for any real roof.
What is recoverable depreciation, and why did I only get part of the money?
On a replacement cost policy, the insurer typically pays in two installments. The first check is the actual cash value — the full amount minus depreciation and minus your deductible. The depreciation is held back. Once the work is completed and you submit the final invoice proving you actually replaced the roof, that withheld amount is released as a second check. That withheld portion is recoverable depreciation.
This is the single most confusing thing about roof claims, and it generates a lot of unnecessary panic. If your claim was approved for $18,000 and the first check was $9,000, nothing has gone wrong — the difference is depreciation held back plus your deductible, and most of it comes back when the job is done and documented.
Two things to be careful about. First, there is usually a deadline to complete the work and claim the depreciation, and it is in the policy. Second, if the policy is actual cash value rather than replacement cost, there is no recoverable depreciation — the first check is the whole settlement.
Do I have to pay my deductible?
Yes. The deductible is your share of the loss, and it is not optional. Any arrangement that makes it disappear — a contractor “eating” it, inflating an invoice to cover it, or billing the insurer for work not done — is a misrepresentation to the insurer. In Georgia it is also specifically warned against by the Attorney General’s office.
One mechanical point people get wrong: if your policy has a percentage wind or hail deductible rather than a flat dollar one, it is calculated on the home’s insured value, not the claim amount. The Insurance Information Institute’s example: a $300,000 dwelling limit with a 5% deductible means $15,000 out of pocket before coverage applies. Percentage deductibles typically range from 1% to 5% of insured value. Check your declarations page for which kind you have, because the difference is enormous.
Can a roofer pay or waive my deductible in Georgia?
No, and the warning comes from the state, not from us. The Georgia Attorney General’s Consumer Protection Division states: “In Georgia, roofers are no longer allowed to pay a storm victim’s insurance deductibles.” It further warns that “by offering to cover the homeowner’s insurance deductible, the scammer is potentially implicating the homeowner in a case of insurance fraud.” The exposure runs to you, not only to the contractor.
We want to be precise here, because this topic is full of confident citations to statutes that do not say what people claim. O.C.G.A. § 33-24-59.16, which is frequently cited in roofing marketing as the Georgia deductible law, is about parental access to children’s health insurance records. It has nothing to do with roofing, contractors or deductibles. We checked. If a contractor cites it at you, they have copied it from someone who copied it from someone else.
What is verifiable is the Attorney General’s consumer guidance quoted above, and the fact that Georgia consumer protection guidance separately advises homeowners to “be skeptical of any contractor that offers to pay your insurance deductible.” That is enough. You do not need a statute number to know that a company whose opening offer is to help you misrepresent a loss to your insurer is not a company you want on your roof.
Can my roofer handle my insurance claim?
Not in Georgia. State law provides that a residential roofing contractor “shall not represent or negotiate, or offer or advertise to represent or negotiate, on behalf of an owner or possessor of residential real estate on any insurance claim in connection with the repair or replacement of roof systems.” Only a licensed public adjuster may do that. The Attorney General’s office states the same thing.
What a roofing contractor can properly do, and what we do:
- Inspect the roof and document what is there, with dated photographs.
- Give you a written report and a written scope of the work needed, which is yours.
- Be present when the adjuster inspects, so the roof is being discussed by people who are both looking at it.
- Explain what the terminology in your paperwork means, so you can have an informed conversation with your carrier.
- Do the work, to the scope that you and your insurer agree.
What the contractor cannot do is stand between you and your insurer. You file your claim. You talk to your adjuster. You decide. If a contractor offers to “handle it all so you don’t have to deal with them,” that offer is not one they are permitted to make in this state.
The same statute gives you a cancellation right worth knowing: an insured may cancel a residential roofing contract before midnight on the fifth business day after receiving written notice from the insurer that all or part of the claim is not a covered loss. And a residential roofing contractor “shall not require any payments from an insured until the five-day cancellation period has expired,” except for acknowledged emergency services.
Should I file a claim or pay out of pocket?
If the repair cost is below or close to your deductible, filing usually costs you more than it returns — you pay for the work anyway and you have a claim on your record. If the damage is substantial and clearly from a covered event, file. The grey zone is damage somewhat above the deductible, and that is a judgement about your claims history and your carrier’s renewal behavior.
Things worth weighing: how far above the deductible the loss actually is, how many claims you have filed recently, whether your carrier is one that has been tightening roof coverage, and whether the damage is documented well enough to be approved at all. A denied claim still appears in your claims history.
How do I file a roof insurance claim?
Document the damage with dated photographs before anything is touched, make temporary repairs to prevent further damage and keep the receipts, call your insurer to open the claim, be present for the adjuster’s inspection, get an independent written scope from a contractor so you can compare it to the adjuster’s, and keep every document in one place.
- Photograph everything, dated. Roof, gutters, downspouts, air conditioner fins, screens, siding, fences, and any interior damage. Wide shots for context and close-ups for detail.
- Mitigate. Tarp active leaks. Policies generally require you to prevent further damage, and the cost of reasonable mitigation is usually covered. Keep receipts.
- Open the claim with your carrier. You do this, not your contractor.
- Get an independent inspection and written scope. Having your own documentation before the adjuster arrives means the inspection is a comparison rather than a presentation.
- Be there for the adjuster. So is your contractor, ideally, on the roof with the photographs.
- Read the scope you are sent. It is an itemised document. If work you were told is needed is not in it, that is a conversation to have with your carrier.
- Keep everything. Every email, every scope revision, every check stub.
How long do I have to file a roof claim in Georgia?
Sooner than any deadline, because delay itself weakens a claim — the longer between the storm and the report, the harder it is to establish that the damage came from that event. On the actual limits, your policy’s own “suit against us” provision is the controlling document and it is frequently shorter than people assume. Read it, and ask your carrier directly.
We are deliberately not publishing a specific number of months here. The sources we found for Georgia’s timeframes are secondary readings of the regulations rather than the regulation text, and a deadline is exactly the kind of fact a reader might rely on to their cost. Your declarations page and your carrier will give you the answer that applies to you.
What does an insurance adjuster look for on a roof?
Evidence that damage came from a specific covered event rather than from age. On a hail claim that means impact marks with a random, non-directional pattern, fresh granule displacement around them, and corroborating soft-metal damage on gutters, vents and air conditioner fins. On a wind claim it means directional creasing, lifted or torn tabs, and a pattern consistent with the prevailing wind.
Adjusters typically test a defined square area on each slope and extrapolate. They are also looking for the things that argue against a claim — existing wear, prior repairs, manufacturing defects, poor installation and deferred maintenance.
What does hail damage look like on a roof?
Random, non-directional dents or bruises across the slope, often with granules knocked away from the impact point, and the affected spot feeling soft or springy when pressed — like a bruise on fruit. It will not be in rows or lines. Corresponding dents in gutters, downspouts, roof vents and air conditioner fins are the strongest corroboration.
What matters functionally is narrower than what is visible. IBHS testing found that “dents/ridges and tears are the types of damage most directly correlated to water penetration,” while granule loss scored consistently well across products. Granule loss is the cosmetic mode. Dents, ridges and tears are what actually let water in.
Be careful with lab-versus-field differences too: IBHS notes that the crushed granules produced in laboratory testing are “not seen in the field,” because real “hailstones often will dislodge granules but are not hard enough to crush them.”
How big does hail have to be to damage a roof?
Bigger than most people assume. The National Weather Service treats one inch — quarter size — as the threshold for “severe” hail. But in IBHS laboratory testing of 22 shingle products, 1.5-inch hail left every product tested, impact-rated or not, rated Good or Excellent. Products only separated meaningfully at 2 inches.
This is worth sitting with, because it cuts against a lot of post-storm sales pressure. Pea-sized hail did not damage your roof. Hail that dented your gutters and your air conditioner fins may well have. If a contractor tells you a marginal hail event destroyed your roof, ask what size the hail was and what evidence they have of functional damage rather than granule loss.
For scale: NOAA’s National Severe Storms Laboratory puts hail fall speeds at 9–25 mph for stones under an inch, 25–40 mph for the 1–1.75 inch range typical of severe storms, and 44–72 mph for 2–4 inch supercell hail.
Can hail damage a roof without me seeing it?
Yes. Bruising — where the impact fractures the shingle mat under the granule surface without breaking through — is often not visible from the ground and sometimes not obvious on the roof either. It is found by touch as much as by eye. This is why a post-storm inspection is worth doing even when the roof looks untouched from the driveway.
How much wind does it take to damage a roof?
There is no reliable published threshold, and we are not going to invent one. The industry’s own technical body warns that shingle wind test classifications “do not directly correlate to wind speeds experienced in service.” What matters more than the number is condition: a roof with curled shingles or broken adhesive seals loses shingles at speeds a properly sealed roof shrugs off.
The National Weather Service office covering north and central Georgia records damaging winds on an average of 19 days per year, peaking in July, with the most likely time of day being mid-afternoon through early evening during the favored months.
What is a cosmetic damage exclusion?
A policy endorsement that excludes damage which affects appearance but not function. Applied to roofs, it means dents and marks from hail that do not compromise the roof’s ability to keep water out may not be covered. These endorsements have been spreading, and they can substantially change what a hail claim pays. Check whether your policy has one.
Does insurance cover a tree falling on my roof?
Generally yes when a tree falls on a covered structure — and typically it is your own policy that responds, regardless of whose tree it was. Whose tree it was tends to matter only where negligence is involved, such as a known dead tree the owner was warned about. Removal of the tree itself may be covered at a limited amount separate from the structural repair.
Why is my mortgage company on my insurance check?
Because your lender has a financial interest in the property, and most mortgage agreements require them to be named on claim payments for structural damage. The check is typically made out to you and the lender jointly, and you endorse it and send it to their loss draft department, which releases funds — often in stages tied to inspections as the work progresses.
This catches people out constantly, and it is a scheduling problem more than a money problem. Call the lender’s loss draft department as soon as you have the check and ask exactly what they need, because their process takes time and your contractor will want paying on a different timetable. Ask your contractor up front how they handle a lender-held draw, because a company that has never dealt with one will struggle.
Do I have to use the roofer my insurance recommends?
No. Carriers maintain preferred contractor networks and will often suggest one, but you choose who works on your house. A network contractor is not automatically better or worse — the arrangement simply means they have a relationship with the carrier. Choose on the same basis you would choose without a claim.
Will insurance pay to bring my roof up to current code?
Only if you have ordinance or law coverage, which is often an optional endorsement rather than standard. Without it, a policy generally pays to restore what was there, not to upgrade it to meet code that has changed since the roof was built. With it, the additional cost of code-compliant work may be covered up to the endorsement’s limit.
This matters in practice because codes do change — drip edge requirements, underlayment layers by slope, fastening patterns. Worth checking your declarations page for.
Can I keep the insurance money and not replace the roof?
On an actual cash value settlement, usually yes — that payment is for the depreciated value of what you lost. On a replacement cost policy, no: the withheld depreciation is only released on proof the work was done, so declining to do the work simply means you never receive it. And if you have a mortgage, your lender’s involvement in the check generally makes it impractical regardless.
There is also a longer-term consideration. An unrepaired documented loss on the property record can affect future claims on the same component, and your carrier may require proof of repair at renewal.
Will filing a claim raise my premium?
It can, and carriers vary. A single weather-related claim in an area where many homes were damaged by the same event is treated differently by most carriers than a pattern of claims. What has become more common than premium increases is tightened roof terms at renewal, or non-renewal where roof age is a factor. Your agent can tell you your carrier’s actual behavior better than any article can.
What do I do if my claim is denied?
Ask for the denial in writing with the specific policy language relied on. Read that language against your policy. If you believe the inspection missed something, you can request a re-inspection, and you can supply your own documentation. If you still disagree, your policy will describe an appraisal or dispute process, and Georgia’s Office of Insurance and Safety Fire Commissioner accepts consumer complaints.
A licensed public adjuster can represent you on a claim — a roofing contractor in Georgia cannot. If the amount in dispute is large, that is the professional whose job this is.
How should I document roof damage for a claim?
Photograph before anything is touched, with dates. Take wide shots that establish location and close-ups that show detail. Capture the roof, the gutters and downspouts, roof vents, air conditioner fins, window screens, siding and fences, plus any interior water damage. Keep receipts for tarps and emergency work. Note the date and time of the storm.
Aerial imagery taken at a consistent altitude is genuinely useful here, because it makes damage measurable rather than describable, and it gives you a before-and-after pair at the same scale. It turns a scope conversation into a discussion about photographs rather than a disagreement about opinions.
Should I have the whole exterior checked after hail?
Yes. Hail does not stop at the roof. Gutters, downspouts, siding, window screens, garage doors, fences, decks, outdoor furniture and the condenser fins on your air conditioning unit are all commonly damaged and all commonly missed. The air conditioner in particular is frequently overlooked and can be an expensive omission from a claim.
Hiring a contractor
Most roofing regret is hiring regret. The work is hidden the moment it is finished, which makes who does it matter more than it does in almost any other trade.
How do I choose a roofing contractor?
Verify liability insurance and workers’ compensation directly with the insurer. Get three written estimates with itemised scopes. Ask for three references from similar recent jobs and actually call them. Look at a job they finished two or three years ago rather than one finished last week. Check the written workmanship warranty and who stands behind it. Prefer a company that will still exist when you need them.
The Georgia Attorney General’s consumer guidance says much the same: get written bids from at least three contractors, request three references from customers with similar projects, check the Better Business Bureau, verify licensing through the Secretary of State, and confirm both general liability and workers’ compensation insurance.
Do roofers need a license in Georgia?
Not a state roofing license, because Georgia does not issue one. The State Licensing Board for Residential and Commercial General Contractors treats roofing as a specialty trade: specialty contractors “do not have to hold a license as a residential or general contractor if they are performing work within their specialty.” Roofing is listed in three specialty categories. Local business licensing, permits and code compliance still apply.
This is the single most misstated fact in Georgia roofing marketing. Any company advertising that it holds a “Georgia roofing license” is describing something that does not exist. That is not necessarily dishonest — most mean their local business license — but it means the phrase tells you nothing, and you should verify insurance instead, which tells you a great deal.
What insurance should a roofing contractor carry?
General liability and workers’ compensation, both current. General liability covers damage to your property. Workers’ compensation covers injury to their crew. Verify both by calling the insurance agent listed on the certificate rather than accepting the certificate itself — certificates are easy to produce and easy to let lapse after they are produced.
Why workers’ compensation is the one to be uncompromising about. If an uninsured worker is injured on your roof, you may find yourself the deepest pocket in the room. Roofing is among the most dangerous trades in the country, and this is not a theoretical risk. Ask for the certificate, then call the agent on it and confirm the policy is active today.
What questions should I ask a roofing contractor?
Ask about insurance, crew, scope, decking, ventilation, flashing, warranty, permit, payment and cleanup — fifteen questions in total, listed below. What you are testing is not really the answers. It is whether they are given straight, whether the person answering knows the job rather than just the sales script, and whether they will put every one of those answers in writing before you sign anything.
- Are you carrying general liability and workers’ compensation right now, and who is your agent so I can verify?
- Will my job be done by your own crew or a subcontractor, and who will be on site running it?
- How many squares do you make my roof, and how did you measure it?
- Are you tearing off or laying over, and how many layers are up there now?
- What is your per-sheet price for replacement decking, and will you photograph every sheet you replace?
- Which flashings are you replacing and which are you reusing?
- Are you replacing the pipe boots?
- What is the ventilation plan, and have you verified the soffit intake is open?
- What underlayment, and where does ice-and-water membrane go?
- What is your workmanship warranty, in writing, and for how long?
- Which manufacturer warranty am I getting, what tier, and who registers it?
- Who pulls the permit?
- What is the payment schedule, and what do you require before starting?
- How do you protect landscaping, and how do you clean up nails?
- Can I have three references from jobs like mine in the last two years?
What should be in a roofing contract?
The full itemised scope of work, the total price and exactly what it includes, the per-sheet decking price and any other unit prices for unforeseen work, the payment schedule, start and completion dates, the workmanship warranty terms, the manufacturer warranty tier, permit responsibility, cleanup obligations, and a clause describing how change orders are approved.
The change order clause is the one that prevents most disputes. It should say that additional work is approved by you in writing, at a stated price, before it is performed. Without it, “we found more rot than expected” becomes an invoice you had no chance to question.
Should I pay a deposit, and how much?
A deposit is normal; a large one is not. Georgia’s consumer protection guidance recommends limiting down payments to no more than one-third of the total cost, with remaining payments tied to work completion and final payment due only on completion. Never pay for the entire project before work begins.
Be wary of any contractor who only accepts cash, demands full payment up front, or refuses to provide a written contract. Georgia’s Attorney General lists all three as reasons to walk away.
There is also a specific Georgia rule that applies to insurance work: a residential roofing contractor “shall not require any payments from an insured until the five-day cancellation period has expired,” except for acknowledged emergency services.
Can a roofer raise the price after I sign?
Only for work outside the agreed scope, and only if your contract allows it. That is what the change order clause governs. Legitimate additions are things that genuinely could not be known beforehand — rotted decking being the classic. Illegitimate ones are things that were visible at the estimate and should have been priced then.
What is a lien waiver and why do I need one?
A document in which the contractor, and ideally their material suppliers and subcontractors, confirm they have been paid and give up any right to place a lien against your property. It matters because if your contractor does not pay their supplier, that supplier may in some circumstances have a claim against your house even though you paid the contractor in full.
Ask for it at final payment. Most homeowners have never heard of this, and it is the cheapest insurance in the entire transaction.
What are the red flags?
Pressure to sign today, a price that is only available now, a demand for full or large payment up front, cash-only, no written contract, no verifiable insurance, no local address, a vehicle with no signage, an offer to cover your deductible, an offer to “handle the insurance for you,” and unwillingness to give references from work done more than a year ago.
Two deserve expanding because they are specific to this state and this trade:
An offer to cover your deductible. Georgia’s Attorney General warns that accepting it can implicate you in insurance fraud. It is also a reliable signal of how the rest of the job will be run.
An offer to handle or negotiate your claim. As covered above, Georgia law prohibits a residential roofing contractor from representing or negotiating on your claim — and from offering or advertising to do so. A contractor who leads with that offer either does not know the law in the state they are working in, or does and is telling you anyway.
Someone knocked on my door after the storm. Is that a scam?
Not necessarily, but the state advises skepticism. Georgia’s Attorney General says homeowners “should be skeptical of any roof repair salesman that shows up at your door uninvited after a recent storm, let alone one that offers to pay your insurance deductible,” and warns that some have used a free inspection as an opportunity to cause damage.
A workable script for the door, if you want one:
“Thanks — I’m not signing or scheduling anything at the door. Leave me a card with your company name, physical address and license or business registration, and I’ll call you if I want an inspection.”
Then, if you are interested: look them up, check how long they have been at that address, ask for local references from before the storm, and verify insurance. A legitimate company will be entirely comfortable with all of it. The thing that separates a storm chaser from a local contractor is not politeness at the door — it is whether they will still be reachable in three years when something needs looking at.
What is a storm chaser?
An out-of-area company that arrives in a market after a hail or wind event, works the neighborhood intensively for a season, and leaves. The work is not always bad, but the workmanship warranty is only as good as the company’s continued presence — and by definition, presence is the thing they do not have. When a callback is needed in year two, there is often nobody to call.
Local company or national brand?
The relevant question is not size but permanence and accountability. A national brand with a real local branch and long-tenured staff is fine. A local company that has been at the same address for years is fine. What you are testing for is whether the people who warrant the work will be findable, and whether the person who sells you the job has any connection to the crew who does it.
What if my new roof leaks?
Call the contractor immediately and follow up in writing so there is a dated record. A leak on a new roof is almost always workmanship, not product, which means it is the contractor’s workmanship warranty rather than the manufacturer’s. Document it with photographs before any repair, and do not accept a verbal assurance in place of a written response.
What if the contractor won’t come back?
Escalate in order: written demand to the company, then the shingle manufacturer if the roof carries an enhanced warranty they backed, then the Better Business Bureau, then the Georgia Attorney General’s Consumer Protection Division, which accepts complaints about contractors. Keep everything in writing from the first contact, because escalation depends on a paper trail.
Who pulls the permit — me or the roofer?
The contractor normally pulls it, and it should say so in the contract. Whether a permit is required for reroofing is set locally rather than statewide in Georgia, so it varies by county and city. Ask your county building department, and ask your contractor which jurisdiction they are pulling in and whether inspection is required.
Why it matters beyond compliance: a permit creates a dated municipal record of when your roof was replaced, which is useful at resale and when a future insurer asks the roof’s age. A contractor who suggests skipping the permit to save you money is offering you a worse outcome, not a cheaper one.
Maintenance
Most of what genuinely extends a roof’s life is unglamorous, cheap and done from the ground.
What maintenance actually extends a roof’s life?
Keeping gutters clear, keeping branches off the roof, keeping debris out of valleys, making sure attic ventilation is working, replacing failed pipe boots and sealant before they leak, and having the roof looked at twice a year and after storms. Almost none of it involves touching the shingles, and almost all of it is about water and heat.
How often should I clean my gutters?
Twice a year as a baseline, and more often under heavy tree cover — which describes most of metro Atlanta. Homes surrounded by pines or hardwoods often need three or four cleanings a year. The test is not the calendar; it is whether water is running through freely during a heavy rain.
Can clogged gutters actually damage my roof?
Yes. Water that cannot exit backs up under the shingle edge and into the roof structure, rotting fascia, soffit and decking edges. It also overflows against the foundation. Gutter damage is slow and it is one of the most common causes of rotted decking at the eaves that homeowners are surprised by at tear-off.
Are gutter guards worth it?
They reduce cleaning frequency; they do not eliminate it. Mesh guards handle leaves well and fine debris less well, and in a pine-heavy yard pine needles are exactly the debris that defeats the cheaper products. They are a reasonable investment where trees make cleaning frequent or access difficult. They are not a permanent solution.
What causes black streaks, and how do I get rid of them?
Black streaking is caused chiefly by a cyanobacterium called Gloeocapsa magma. The asphalt roofing manufacturers’ association recommends cleaning with a solution of liquid household bleach and water, allowing 15 to 20 minutes of dwell time, then a gentle rinse — and explicitly warns against using power washers, brushes or brooms. It also cautions that the effect is “only temporary, and the discoloration may recur.”
Practical notes for this climate: streaking is close to universal on shaded and north-facing slopes here, it is cosmetic, and it will come back. Protect plantings below before any bleach-based cleaning, and if the roof is steep or high, this is work for someone with the right equipment rather than a ladder and optimism.
Can I pressure wash my roof?
No. The manufacturers’ own guidance is to use a bleach and water solution with a gentle rinse, and explicitly not power washers, brushes or brooms. Pressure blasts the granules off the shingle surface — the granules that are the roof’s UV protection — and can drive water under the courses. It makes the roof look better today and shortens its life measurably.
If someone offers to pressure wash your shingle roof, they are offering to damage it. Soft washing, which applies a cleaning solution at low pressure and rinses gently, is the appropriate method.
Do zinc or copper strips stop roof algae?
The principle is sound — metal ions washing down the roof inhibit growth — and installed strips at the ridge do visibly reduce streaking below them. But we could not find an authoritative source that quantifies the effect, and notably the asphalt shingle industry’s current standards document lists no consensus algae-resistance test at all. Treat it as a reasonable measure with soft evidence rather than a proven fix.
Should I trim branches over my roof?
Yes, and it is one of the highest-value things you can do for a roof in this area. Overhanging branches abrade shingles in wind, drop debris into valleys and gutters, keep slopes damp and shaded which encourages moss and algae, and give squirrels a bridge. Aim to keep limbs well clear of the roof surface, and take dead limbs down before storm season rather than after.
Can I walk on my roof to inspect it?
Generally you should not. Falls are the real risk and they are serious, and walking on shingles — especially hot ones in a Georgia summer — scuffs granules off and can damage what you are inspecting. Almost everything a homeowner needs to see can be seen from the ground with binoculars, from a ladder at the eave, or from inside the attic.
How do I check my roof without getting on it?
Binoculars from the ground on every elevation, a ladder at the eaves to look along the plane, and the attic from underneath with a torch and the lights off. Photograph what you see so you can compare next time. If you own a drone, imagery at a consistent altitude gives you a genuinely useful year-on-year record.
What should I look for in the attic?
With the lights off, look for daylight coming through the decking. With a torch, look for water staining on the underside of the deck or on the rafters, damp or compressed insulation, rusty nail shanks, mold, and whether the soffit vents at the eaves are open or buried under insulation. Feel for humidity — a well-ventilated attic should feel close to outside air.
Rusted nail tips are a particularly useful signal. They indicate repeated condensation on the underside of the deck, which points to a ventilation problem rather than a leak, and that is a problem that will shorten the roof’s life quietly.
What should I check after a storm?
Walk the perimeter and look for shingles on the ground, granule piles at downspout outlets, dents in gutters, downspouts, roof vents and air conditioner fins, damaged screens or siding, and any debris on the roof. Then check the attic for new daylight or damp. Photograph anything you find, with the date, before calling anyone.
Do roof rejuvenation or sealing treatments work?
The evidence is thin and we would not spend money on it. These products are marketed as restoring flexibility to aged asphalt and adding years of life. We could not find independent, non-vendor testing supporting the lifespan claims, and applying a coating can complicate or void a manufacturer warranty. Ask the manufacturer of your shingles before letting anyone apply anything to them.
How do I prevent leaks in the first place?
Replace pipe boots proactively rather than waiting for them to split, keep valleys and gutters clear so water moves, keep branches off the roof, have flashing checked at every inspection, and fix small things immediately. Nearly every expensive roof repair started as a cheap one that was left alone for a season.
Roofs in Georgia, specifically
National roofing content is written for a climate that is not ours. Ice dams get chapters; 90-degree Julys, red clay pollen and pine straw in the valleys get nothing. This section is the local half.
What does Georgia’s climate actually do to a roof?
Three things: heat and UV age the shingle mat, humidity feeds algae and keeps shaded slopes damp, and a concentrated severe weather season delivers hail and damaging wind. Atlanta’s climate normals show a July normal high of 90.1°F, three months at or above 87°F, and 50.43 inches of annual precipitation — a hot, wet, cooling-dominated climate.
| Measure | Value |
|---|---|
| Hottest month (normal high) | July, 90.1°F |
| Months with normal high ≥ 87°F | June, July, August |
| Annual normal precipitation | 50.43 inches |
| Wettest month | July, 4.75 inches |
| Driest month | October, 3.28 inches |
Source: NOAA National Centers for Environmental Information, Climate Normals 1991–2020.
The heat matters because NIST research confirms that UV radiation, extreme heat and thermal cycling degrade asphalt shingles and compromise their ability to withstand mechanical loads. The rainfall matters because 50 inches a year through valleys, flashings and gutters finds every weakness. The humidity matters because it is what makes algae close to universal here.
How much severe weather does metro Atlanta actually get?
More wind than hail, and concentrated in spring. The National Weather Service office covering north and central Georgia records damaging winds on an average of 19 days per year peaking in July, large hail on an average of 7 days per year peaking in April, and an average of 6 tornado days per year concentrated in March, April and May.
Those averages cover the whole forecast area, which includes Paulding, Cobb, Cherokee, Bartow, Douglas and Fulton counties — not any single county. The practical read: April is the month to be watchful about hail, spring is the season to schedule a post-storm inspection, and summer afternoon storms are the wind risk.
Georgia is not in “hail alley,” whatever you have been told. NOAA’s National Severe Storms Laboratory places hail alley at the convergence of Nebraska, Colorado and Wyoming, which averages seven to nine hail days per year. We could find no source that ranks Georgia in it. That does not mean hail here is trivial — seven large-hail days a year across the region is real and it damages roofs — but if a contractor opens with “Georgia is one of the worst hail states in the country,” they are selling, not informing.
How long does a roof last in Georgia?
Plan on the lower half of the general 20-year expectation rather than the upper half. The mechanism is documented — heat, UV and thermal cycling degrade asphalt shingles — but no authority publishes a Georgia-specific lifespan figure, and we are not going to make one up. Ventilation is the variable you control, and it matters more here than in a cooler climate.
Why does my Georgia roof have black streaks?
Warm, humid, shaded conditions are ideal for Gloeocapsa magma, and metro Atlanta supplies all three for most of the year. It is worse on north-facing slopes, under tree canopy, and on roofs that stay damp into the morning. It is cosmetic. See the maintenance section for what to do about it, and what not to do.
Do pine trees damage roofs?
Not directly, but they cause three real problems. Pine straw collects in valleys and behind chimneys where it holds moisture against the roof. It packs gutters more densely than leaves and defeats cheaper gutter guards. And pines drop limbs in wind and storms, which is the impact risk. In a pine-heavy yard, valley and gutter clearing matters more than average.
The valleys are the part people miss. A packed valley stops moving water, and standing water at a valley is how a roof leaks in year twelve instead of year twenty.
Does Atlanta pollen harm my roof?
There is no evidence pollen damages shingles, and we would not claim otherwise. What it does do is coat everything, wash into gutters and combine with other debris to form a dense sludge that clogs downspouts. Treat the spring pollen load as a gutter maintenance issue rather than a roof damage issue.
How does metro Atlanta’s tree canopy affect a roof?
Shade cuts heat load, which is good for the shingles, but it also slows drying, which encourages algae and moss and keeps debris damp. Overhanging limbs abrade the surface in wind and drop debris into valleys. On balance, mature canopy means a roof that needs more attention, not less — the maintenance load goes up even as the thermal load goes down.
Do I need a permit to replace my roof in Georgia?
It depends on your jurisdiction, and neighboring ones in metro Atlanta genuinely disagree. Paulding County and Cherokee County both state that replacing shingles without structural work needs no permit. The City of Smyrna lists roof replacement as work that does require one, and Marietta and Kennesaw require one for any repair or alteration of a structure. Inside a city, the city is the authority, not the county — which is why a Marietta address and unincorporated Cobb get different answers.
We checked every jurisdiction we work in against its own published guidance: roofing permits in metro Atlanta, county by county, with fees, formulas and the date each was verified.
What is statewide is the code the work must meet. Since January 1, 2026 Georgia has enforced the International Residential Code, 2024 Edition, with Georgia Amendments. Georgia's approved amendments to that edition do not touch the roofing or attic ventilation chapters, so those provisions apply as published.
What does Georgia code require on a reroof?
The requirements homeowners can most usefully check are drip edge at eaves and rakes in minimum 26-gauge corrosion-resistant metal with at least 2-inch overlaps and fastening at maximum 12 inches on center, and underlayment by slope — two layers between 2½:12 and 4:12, at least one layer applied shingle-fashion at 4:12 and steeper.
Those figures come from the Georgia reroofing guidance that circulates most widely, a Cherokee County building department document whose own footer identifies it as the 2012 code edition with Georgia amendments effective January 1, 2014. The substance of these requirements has been stable across editions, but the section numbers were reorganized in 2021, and Georgia moved to the 2024 edition on January 1, 2026. Treat them as indicative rather than as current citations.
If you want to hold a contractor to a specific requirement, confirm the currently adopted edition and the current section with your building department rather than relying on any website, including this one. They have a counter copy, and they are the ones who will inspect the work.
Can I have two layers of shingles in Georgia?
Layer limits are code-driven and jurisdiction-variable, so the answer depends on where you live. Whatever your jurisdiction permits, a layover is rarely the better technical choice — see why. Check with your county building department before assuming either way.
Do I need ice and water shield in Georgia?
Not for ice dams, which are not a meaningful risk here. But the membrane is still worth specifying in valleys, around chimneys and skylights, at wall intersections and around pipe penetrations, where it functions as wind-driven-rain protection. Given 50 inches of annual rainfall and summer storms that arrive sideways, that is a real benefit rather than a northern habit.
Are Class 4 shingles worth it in Georgia?
Less clearly than in the Plains states, and the deciding factor should be what your insurer will actually discount. IBHS testing found impact-rated shingles indistinguishable from ordinary ones at 1.5-inch hail, with separation only appearing at 2 inches, and only among polymer-modified products. Get the discount figure in writing from your carrier before paying the upgrade.
Is it too hot to install a roof in a Georgia summer?
It is workable but it is the hardest time to do it well. Shingles soften in extreme heat and scuff more readily underfoot, which means a careless crew can mark a brand-new roof simply by walking it. Crews start very early and take more breaks. If you have a choice and no active leak, autumn is easier on everyone including your roof.
Can roofs be replaced in winter in Georgia?
Yes, routinely. Georgia winters are mild enough that work continues year-round here. The one technical consideration is that shingle adhesive strips seal by solar warmth, so in genuinely cold weather the seal may take days or weeks of warmer conditions to fully bond. Competent crews hand-seal where needed. This is a scheduling consideration, not an obstacle.
Will my Georgia insurer drop me because of my roof’s age?
It has become a real possibility across the market. Carriers have been tightening roof terms — moving older roofs to actual cash value, applying age-based payment schedules, requiring inspections at renewal, and in some cases declining to renew. This is an industry-wide shift rather than something specific to Georgia, but Georgia homeowners are inside it.
What to do about it: know your roof’s age, keep documentation of inspections and repairs, and read the roof provisions on your policy before renewal rather than after a storm. If your carrier has moved you to ACV on the roof, that is worth knowing in advance, because it changes the maths on whether to replace proactively.
Roofing terms, defined
Everything a contractor might say to you, in plain English.
- Actual cash value (ACV)
- An insurance settlement basis that pays replacement cost minus depreciation. Contrast with replacement cost value.
- Architectural shingle
- A laminated asphalt shingle made of two bonded layers, giving a thicker, textured appearance. Also called dimensional or laminate. The default choice on most new residential roofs.
- Apron flashing
- Metal flashing at the base of a wall or chimney where it meets the roof plane.
- Counter flashing
- Flashing installed over step flashing, usually let into a chimney’s mortar joints, so water cannot run behind the step flashing.
- Course
- One horizontal row of shingles. Even course spacing is one of the clearest visual signs of good installation.
- Decking (sheathing)
- The plywood or OSB panels fastened to the rafters or trusses. The structural surface everything else is fastened to.
- Drip edge
- Corrosion-resistant metal at the eaves and rakes that directs water into the gutter rather than behind it. Required by Georgia’s adopted code, at both eaves and rakes.
- Eave
- The lower edge of a roof, where the gutter is. Intake ventilation enters here through the soffit.
- Exposure
- The amount of each shingle left visible after the next course covers it. Inconsistent exposure is a sign of careless installation.
- Fascia
- The vertical board at the edge of the roof overhang, to which the gutter is usually attached.
- Flashing
- Metal that seals joints where the roof meets something else — a wall, chimney, skylight or vent pipe. Most leaks originate at flashing, not at shingles.
- Granules
- The mineral coating on the shingle surface. They provide color, fire resistance and, most importantly, UV protection for the asphalt beneath.
- Hip
- The external sloping corner where two roof planes meet. Covered with cap shingles.
- Ice and water shield
- A self-adhering waterproof membrane. Named for ice dam protection in northern climates; in Georgia its value is as wind-driven-rain protection in valleys and around penetrations.
- Kickout flashing
- A small piece of flashing that diverts water away from a wall where a roof edge terminates against it. Its absence causes hidden, expensive wall damage.
- Layover
- Installing new shingles over existing ones rather than tearing off. Cheaper, but hides the decking and generally shortens the new roof’s life.
- Net free ventilating area
- The effective open area of a vent after screens and baffles are accounted for — not the physical size of the opening. Ventilation ratios are calculated on this figure.
- OSB
- Oriented strand board. A common decking material made of compressed wood strands. More vulnerable to moisture damage than plywood.
- Pipe boot
- The collar sealing around a plumbing vent pipe where it passes through the roof. The rubber gasket type is the most common single source of leaks on an otherwise healthy roof.
- Pitch
- Roof steepness, expressed as inches of vertical rise per 12 inches of horizontal run. A 6/12 pitch rises 6 inches over 12.
- Rake
- The sloping edge of a roof at a gable end.
- Replacement cost value (RCV)
- An insurance settlement basis that pays the cost to repair or replace without deducting depreciation. Typically paid in two installments — see recoverable depreciation.
- Recoverable depreciation
- The depreciation an insurer withholds from the first claim payment and releases once the work is completed and documented. It is the difference between the first check and the total approved amount, less the deductible.
- Ridge
- The horizontal peak where two roof planes meet at the top. Covered with ridge cap shingles.
- Ridge vent
- Exhaust ventilation running along the ridge. Ineffective, and potentially harmful, without matching soffit intake.
- Soffit
- The underside of the roof overhang. Soffit vents are where intake air enters the attic — the half of the ventilation system most often blocked or omitted.
- Square
- 100 square feet of roof surface. The unit roofing is measured and priced in.
- Starter shingle
- A purpose-made strip installed along the eaves and rakes beneath the first course, providing an adhesive bond at the edge. Required for most enhanced wind warranties.
- Step flashing
- Individual L-shaped pieces of flashing woven into the shingle courses where a roof plane meets a vertical wall — one piece per course.
- 3-tab shingle
- A single-layer asphalt shingle with cut-outs forming three tabs. Flat in appearance, lighter and cheaper than architectural.
- Tear-off
- Complete removal of the existing roof covering down to the decking, as opposed to a layover.
- UL 2218
- The impact-resistance test standard. Classes 1 to 4 correspond to steel ball diameters of 1.25, 1.5, 1.75 and 2 inches. Class 4 is the highest. Failure means an opening visible on the back of the shingle; dents and granule loss are not failures.
- Underlayment
- The water-resistant layer between decking and shingles. Traditionally asphalt-saturated felt; synthetic is now common and generally superior.
- Valley
- The internal corner where two roof planes meet. Carries the highest water volume on the roof and is a common failure point.
- Wind rating (ASTM D3161)
- A fan-induced wind test. Class A = 60 mph, Class D = 90 mph, Class F = 110 mph. The standard states its results do not directly correlate to service wind speeds.
- Wind rating (ASTM D7158)
- An uplift-force test. Class D = 115 mph, Class G = 150 mph, Class H = 190 mph. This is the standard whose values can be compared to code three-second gust design wind speeds.
- Workmanship warranty
- The contractor’s warranty covering installation errors, as distinct from the manufacturer’s warranty covering product defects. Usually the one that matters.
Sources
Every factual claim on this page that needs a source has one here. Where we could not find a credible source, we said so in the text rather than filling the gap.
Standards, research and building science
- National Roofing Contractors Association — roof service life and inspection frequency.
- NIST — long-term durability of asphalt shingle roof covers; degradation from UV, heat and thermal cycling. July 2026.
- Asphalt Roofing Manufacturers Association — ventilation and premature roofing failure; intake/exhaust balance. February 2023.
- ARMA — algae discoloration, Gloeocapsa magma, and cleaning method. June 2024.
- ARMA — asphalt shingle product and test standards. November 2025.
- IIBEC — attic ventilation ratios and the consequence of exhaust without intake. November 2019.
- Professional Roofing / NRCA — ASTM D3161 and D7158 wind classifications. February 2021.
- IBHS — UL 2218 test method, ball diameters and failure criteria. August 2014.
- IBHS — hail impact performance of asphalt shingles; 1.5-inch and 2-inch results.
- IBHS — 2023 hail impact ratings update. June 2023.
- FEMA — Fact Sheet 3.3.1, sloped roof systems. March 2022.
- U.S. Department of Energy — Consumer Guide to Cool Roofs.
Weather and climate
- NOAA / National Weather Service Peachtree City — severe weather climatology for north and central Georgia.
- NOAA National Severe Storms Laboratory — hail size, fall speeds and hail alley.
- NOAA National Centers for Environmental Information — Atlanta climate normals 1991–2020, station USW00013874.
Insurance
- National Association of Insurance Commissioners — replacement cost versus actual cash value, with worked example. July 2021.
- Insurance Information Institute — how percentage deductibles are calculated.
- Insurance Information Institute — windstorm and hail deductibles.
- United Policyholders — roof payment schedules and age-based ACV conversion.
Georgia law and consumer protection
- Georgia Attorney General’s Consumer Protection Division — roofers, deductibles, claims filing and post-storm door knocking.
- Georgia Attorney General’s Consumer Protection Division — storms and contractor fraud; deposits, bids and references.
- O.C.G.A. § 10-1-393.12 — residential roofing contractors: cancellation rights, payment timing, and the prohibition on representing or negotiating insurance claims.
- Georgia Secretary of State, State Licensing Board for Residential and Commercial General Contractors — specialty contractor policy statements; roofing as an exempt specialty trade.
- Georgia DCA Office of Construction Codes, via Cherokee County — reroofing requirements: drip edge specification and underlayment layers by slope.
Cost and materials
- 2025 Cost vs. Value Report, JLC — roof replacement job cost and cost recouped at resale, with published job specification.
- Angi — national roof replacement cost survey. March 2026.
- GAF Golden Pledge Limited Warranty — “lifetime” definition, transfer terms, exclusions, and the contractor-paid-in-full condition.
- CertainTeed — what a lifetime shingle warranty covers.
- Metal Construction Association — service life study for unpainted 55% Al-Zn coated steel standing seam.
- NAHB Economics Group, Study of Life Expectancy of Home Components, February 2007 — life expectancy by material.
What we could not source
In the interest of not pretending to more certainty than we have, these are the things we looked for and could not verify, and therefore did not state:
- Separate lifespan figures for 3-tab, architectural and luxury shingles. No authority publishes them.
- A specific wind speed at which asphalt shingles begin to fail. The industry’s own technical body warns that test-class mph figures do not correlate to service conditions.
- A quantified relationship between Georgia’s heat and reduced roof lifespan. The mechanism is documented; the magnitude is not.
- How many degrees hotter a dark roof makes an attic. The Department of Energy deliberately does not publish degree figures.
- A Georgia or Atlanta roof cost figure from any source with a published methodology.
- Georgia’s position on insurance “matching” — whether an insurer must replace undamaged sections for uniform appearance.
- Georgia-specific claim filing deadlines from primary regulation text rather than a secondary reading.
- A Georgia statute specifically prohibiting deductible waiving. The Attorney General’s consumer guidance says plainly that it is not allowed; the statute number commonly cited for it in roofing marketing, O.C.G.A. § 33-24-59.16, is about parental access to children’s health insurance records.
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