Guttrz / Blog / Signs you need a new roof
7 signs you need a new roof in Northeast Ohio
Roofing by Guttrz: the owner inspects your roof himself, sends a photo report, and gives one flat written quote good for one year.
The seven signs you need a new roof are shingles that curl or crack across a whole slope, shingles missing after ordinary wind, heavy granule loss, a sagging roofline, moss and staining that come back, leaks or daylight in the attic, and a roof past 20 years or already carrying two layers. One sign in one spot is usually a repair. Three or more spread across the roof is a replacement conversation. Roofing by Guttrz in North Canton, Ohio inspects roofs free, rates them Good, Watch or Replace Soon with a photo report, and gives one flat written quote good for one year.
The signs you need a new roof in Northeast Ohio show up in two places: on the roof itself, which you can read from the driveway with binoculars, and in the attic, where the roof deck tells you how long water has been getting in. Winters here run freeze-thaw from November to March with about 47 inches of snow a season at Akron-Canton, so shingles age fastest at the eaves and in the valleys. Here are the seven signs that matter, what each looks like from the ground and from the attic, and which ones still fall on the repair side of the roof repair vs replacement line.
What are the 7 signs you need a new roof?
Do the ground check on a dry, bright day with binoculars, and the attic check with a flashlight on a sunny afternoon and again right after a hard rain. Turn the attic light off for the daylight checks.
1. Shingles that curl, cup or crack
From the ground: shingle edges lifting like potato chips, tabs with turned-up corners, or a slope that looks rough and shadowed instead of flat. South and west slopes go first because they take the most sun. Cracking shows as fine lines across the tabs, often in a row where the shingle sits over a seam.
From the attic: this one hides. Curled shingles let wind-driven rain under the tabs before you see a stain, so look for small dark rings around the nail tips on the deck of the slope that looks worst outside.
2. Missing shingles after ordinary wind
From the ground: dark rectangles where the shingle below shows through, tabs lying in the yard or the gutter, or a ridge cap with gaps. A 50 mph gust in a spring thunderstorm should not take shingles off a sound roof. If it does, the sealant strips have let go, and the rest of that slope is next.
From the attic: pinpoints of daylight through the deck under the missing area, and a damp patch on the insulation after the next rain.
3. Granule loss and bald spots
From the ground: shingles that look dark, smooth or shiny in patches, especially below an upper-roof downspout and along the eaves. Then check the gutters and the splash blocks. A layer of black grit like coffee grounds at every downspout outlet means the roof is shedding its protective layer. A fall gutter cleaning in Canton will show you how much grit is coming down.
From the attic: granule loss does not show inside. If a slope is bald outside, check that slope's deck for soft spots anyway.
4. A sagging or wavy roofline
From the ground: stand at the end of the house and sight down the ridge. It should run straight. A dip in the middle, a wave between rafters, or a low spot in one slope means the deck or the framing under it has moved.
From the attic: plywood or OSB that bows between rafters, a deck that flexes when you press it with a broom handle, dark staining or peeling layers on the underside of the sheathing, and rafters with a visible bend. Sagging usually means years of trapped moisture. Those areas need a tear-off and new decking, which a second layer of shingles cannot fix, as our page on a roof overlay versus a full tear-off explains.
5. Moss, dark streaks and staining that come back
From the ground: black streaks running down a slope are algae, which is mostly a looks problem. Green moss is different. It grows on north slopes and under the oak and maple shade over so many yards around North Canton and Jackson Township, holds water against the shingle through every freeze-thaw cycle, and pries at the seals. A roof that grows moss back within a year of cleaning is usually porous and near the end.
From the attic: look under the mossy slope. Rusty nail tips, a deck that stays dark and damp two days after rain, and a musty smell all mean that slope is wet more than it is dry.
6. Leaks, ceiling stains and daylight in the attic
From the ground: inside the house, really. Brown rings on ceilings, peeling paint at the top of an exterior wall, bubbling drywall near the chimney, or a stain that grows after every storm. Outside, look at the flashing around the chimney, the plumbing vents and any spot where a lower roof meets a wall.
From the attic: this is where leaks show first. Water trails on the underside of the deck, white mineral stains, rust rings around nails, wet or matted insulation, and daylight around the chimney, the vents or along the valleys. One leak at a vent boot is a repair. Stains in several places, or along a whole valley, mean the underlayment has failed. A free roof inspection from Guttrz covers the attic for exactly this reason.
7. The roof is past 20 years or already has two layers
From the ground: look at the roof edge where it meets the gutter. A roof with two layers looks thick and stepped at the eave, with a bumpy surface that follows every curl in the layer underneath. The Residential Code of Ohio, like the IRC it is based on, allows no more than two layers of asphalt shingles, so a two-layer roof has to come off completely at its next replacement. Many of the subdivisions in Jackson Township and North Canton went up in the 1990s and early 2000s, which puts an original 3-tab roof right at the end of its life now.
From the attic: the deck tells you the age. Two generations of nail tips through plywood, some rusty and some bright, mean at least one overlay. Our post on how long a roof lasts in Ohio has the typical life by shingle type.
Does one sign mean you need a new roof?
No. One missing shingle, one leaky pipe boot or one cracked piece of flashing is a repair. A new roof makes sense when the signs are spread across the roof, when the shingles are near the end of their expected life, or when the deck itself is soft or sagging. The rule of thumb on our roof repair vs replacement page is simple: repair a young roof with one problem, replace an old roof with several, and get an honest answer on anything in between.
What should you do if you see these signs?
Have the roof looked at by someone who will also tell you what it does not need. Roofing by Guttrz offers free roof inspections in North Canton and the surrounding Stark County towns. The owner walks the roof and checks the attic himself, sends you a photo report with a Good / Watch / Replace Soon rating, and if the roof needs replacing you get one flat written quote good for one year, with no sign-today pricing. What a Guttrz asphalt shingle roof replacement in North Canton includes is on the roofing page. Now booking spring 2027 roof replacements. Free roof inspections now. Book a free roof inspection in North Canton.
Common questions
How often should I check my roof for these signs?
Walk around the house twice a year, in spring after the snow is gone and in fall before it comes back, and again after any storm with hail or strong gusts. Check the attic with a flashlight at the same time. Ten minutes twice a year catches most problems while they are still repairs.
Can a roof look fine from the ground and still need replacing?
Yes. Granule loss, hairline cracks and failed sealant strips are hard to see from the driveway, and a soft deck shows up in the attic long before the roofline sags. That is why an inspection includes walking the roof and looking at the sheathing from below, not just a look from the street.
Is grit in the gutters always a sign the roof is failing?
No. A new roof sheds loose granules for the first year, and every asphalt roof loses some every season. The warning sign is a steady, heavy layer of grit on a roof that is more than ten years old, or bald patches you can see from the ground. Taken together with curling or cracking, it points to a roof near the end.
Do I need a new roof if my neighbors are all replacing theirs?
Not automatically, but it is a strong hint. Houses on the same street usually got their roofs the same year with the same grade of shingle, so they age together. Use it as a reason to get a free inspection and a Good, Watch or Replace Soon rating, not as a reason to sign with whoever is working next door.
How much life does a roof have if it shows one or two of these signs?
It depends on which signs and how old the roof is. One missing shingle or one leaking vent boot on a 12-year-old architectural roof is a repair, and the roof may have 15 years left. Curling plus granule loss on an 18-year-old 3-tab roof usually means two to three years at most. An inspection with photos puts a real number on it.
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Written by Christian Schaffner, owner of Guttrz. Updated November 7, 2026.
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