Seven Signs You Need a New Roof, and Which Ones Can Wait
Most of these you can check from the ground or from inside the attic in twenty minutes. One of them is urgent. The rest give you time to plan, which is a much cheaper way to buy a roof.
Quick scan
Seven signs, and what each one means
One of these on its own is worth a proper look. Several together is a replacement rather than a repair.
Sign
What it tells you
Granules in the gutters and downspouts
the clearest sign, and the easiest to check
Shingles curling, cupping or clawing
means heat and age, across the whole roof
Bare patches where the mat shows through
past repair, not approaching it
A roof over twenty years old
age on its own is a reason to plan
Sagging, soft spots or a visibly uneven roofline
the one that is urgent
Daylight or water stains in the attic
best place to look, and almost nobody does
Repairs every single year
the financial sign rather than the physical one
Check from the ground and from inside the attic. Do not get on the roof: walking aged asphalt breaks seals that were still intact, and the fall risk is not worth the information.
In detail
What to look for, and where
Each one below says what it means, and the part most people get wrong about checking it.
1. Granules in the gutters and downspouts, the clearest sign, and the easiest to check
Plan for it Not urgent on its own. It means the clock has started, so budget rather than panic.
Asphalt shingles are protected by a granule layer, and when that layer goes the mat underneath has nothing between it and the sun. A handful of grit at the bottom of a downspout is normal on a new roof as the loose material washes off. A steady accumulation on a roof over ten years old is the roof telling you it is wearing out.
The catch. Check the splash block or the bottom of the downspout, not the gutter itself, because that is where the granules collect.
2. Shingles curling, cupping or clawing, means heat and age, across the whole roof
Plan for it Across the whole roof it is age. On one slope only it is ventilation, which is cheaper.
Edges lifting upward or the middle rising are what asphalt does as it dries out and loses flexibility. The reason this matters more than a few damaged shingles is that it shows up everywhere at once, because the whole roof got the same sun and the same attic heat.
The catch. Curling on one slope only is usually a ventilation problem rather than age, and it is worth finding out which before you buy a roof.
3. Bare patches where the mat shows through, past repair, not approaching it
Replace, not repair The shingle is no longer weatherproof there, and a patch will not seal to neighbors this old.
Black or gray patches with no granules left are the fiberglass mat itself. At that point the shingle is no longer weatherproof in that spot and the clock on the decking underneath has started. This is not a repair, because a patch next to twenty-year-old shingles will not seal to them properly or match them.
The catch. From the ground this looks like a shadow or a stain. It is worth a proper look before you conclude it is dirt.
4. A roof over twenty years old, age on its own is a reason to plan
Budget for it Not failing yet. Close enough that it should be a planned expense, not an emergency one.
A three-tab roof in North Carolina realistically runs 15 to 20 years and an architectural roof 20 to 30. Our humidity, summer heat and pollen all work against the top of those ranges. A roof at twenty is not necessarily failing, but it is close enough that a replacement should be a planned expense rather than an emergency.
The catch. If you do not know the age, a permit search at the county or the previous owner's disclosure will usually tell you.
5. Sagging, soft spots or a visibly uneven roofline, the one that is urgent
Urgent The deck or the structure has moved. This one gets more expensive every season you leave it.
A dip or a wave in the roof plane means the decking or the structure underneath has moved, usually because water has been getting in for a long time. This is the one sign on this list that should not wait for the next convenient month, because the repair gets more expensive every season.
The catch. A sag along a ridge can also be an old settled frame rather than rot. Either way it needs somebody in the attic, not a guess from the driveway.
6. Daylight or water stains in the attic, best place to look, and almost nobody does
Urgent if it is fresh Old stains can be from a leak already fixed. Damp sheathing and soft decking cannot wait.
Go up with the lights off on a bright day. Daylight through the deck is a hole. Dark staining on the underside of the sheathing, rusty nail tips or damp insulation all mean water has been arriving for a while, and the attic shows it long before the ceiling does.
The catch. Stains can be historic, from a leak already fixed. Fresh damp and soft sheathing are the ones that matter.
7. Repairs every single year, the financial sign rather than the physical one
Do the arithmetic Three or four invoices in a row is a replacement being paid for in installments.
A roof that needs something doing to it every year is a roof you are already replacing, just in installments and without ever getting a new roof at the end. Add up the last three or four invoices before you authorize the next one.
The catch. One bad storm year is not a pattern. Three in a row is.
Want someone to tell you straight?
A free inspection ends with one of three answers: repair it, watch it, or replace it. No pressure attached to any of them.
Repair or replace
The distinction that decides the bill
Damage in one area on a roof that is otherwise sound is a repair, and anybody who tells you otherwise is selling a roof. A missing shingle after a storm, one bad valley, a failed pipe boot: those are repairs, and they should cost hundreds rather than thousands.
What points to replacement is the signs that show up everywhere at once. The whole roof is the same age and got the same sun, so when granule loss, curling and bare patches appear across all the slopes, patching one area buys very little.
There is a financial version of the same test. A roof that needs something doing every year is a roof you are replacing in installments without ever getting a new roof at the end of it. Add up the last three invoices before authorizing a fourth.
The one sign that does not wait is movement: a sag, a dip, a soft spot underfoot in the attic. That means the decking or the structure has taken water for a long time, and the job grows every season.
Questions
Questions about replacing a roof
What are the signs you need a new roof?
Granules collecting at the bottom of the downspouts, shingles curling or cupping across the whole roof, bare patches where the mat shows through, a roof over twenty years old, any sag or soft spot, and daylight or fresh water stains in the attic. One of these on its own is worth a look. Several together is a replacement.
How do I know if my roof needs replacing or just repairing?
Damage in one place on a roof that is otherwise sound is a repair. The signs that point to replacement are the ones showing up everywhere at once, because the whole roof is the same age and got the same weather.
How long should a roof last in North Carolina?
Three-tab asphalt runs 15 to 20 years here and architectural shingles 20 to 30. Humidity, summer heat and poor attic ventilation all pull those figures toward the lower end. Our roof lifespan guide goes through it by material.
Can I check my roof myself?
From the ground and from the attic, yes, and those two vantage points catch most of it. Do not get on the roof. Walking an aged asphalt roof damages shingles that were still sealed, and the fall risk is not worth the information.
Will insurance pay for a worn-out roof?
No. Insurance covers sudden damage, like a storm tearing shingles off, not age or wear. If a storm is the reason you are looking, photograph everything before anything gets tarped or repaired. Our insurance claims page covers how that works here.
Is a roof inspection worth paying for?
Ours is free, so the question is really whether it is worth an hour of your time. It is: you get told whether you are looking at a repair, a few more years, or a replacement, and that is the difference between a few hundred dollars and several thousand.
How long can I put off a roof replacement?
It depends entirely which sign you have. Age and granule loss give you time to plan and budget. A sag, a soft spot or active water in the attic do not, because every month of water getting in adds decking to the job.
Keep reading
Related guides and calculators
If several of these signs are on your roof, these are the next pages to read.
What is covered, what is not, and how to document storm damage.
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