Comparison

Signs You Need a New Roof: What to Look For From the Ground and the Attic

Most roofs give warning before they fail. The trick is knowing which signs mean the whole system is worn out, which ones point to a single repair, and which ones are cosmetic.

11 min read Updated October 2026 By Jose Puente, Civil Engineer & Owner
Last verified October 30, 2026
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Roof surfaceAtticFrom the groundFrom the atticCurled shinglesMissing tabsBald patchesSagging ridgeDaylight at boardsWater stainsWet insulationSoft decking
Diagram of a roof and attic listing the replacement warning signs you can check from the ground and from inside the attic.
Quick answer
The clearest signs you need a new roof are age past the material's expected service life, curling or cracked shingles across several slopes, bald patches where granules are gone, a sagging roof line, and, from the attic, daylight through the boards, water stains or soft decking. One sign on one slope usually means a repair. The same signs spread across the roof mean the system is worn out. In Central Texas, a well-installed architectural shingle roof typically lasts 15–20 years, so a roof in that window with widespread wear is a replacement candidate even if it isn't leaking yet.
Key takeaways
  • Age is the first filter: architectural shingles typically last 15–20 years in Central Texas, and older 3-tab roofs 12–15 years.
  • Curling, cracking and bald patches on most slopes point to a worn-out roof. The same thing on one small area is usually a repair.
  • Some granule loss on a new roof is normal. Bare asphalt showing through is not.
  • The attic often tells you more than the roof: daylight, stains, wet insulation and soft decking are all serious.
  • A sagging ridge or deck is the one sign that needs a professional look right away.
  • Repair wins when it costs under 20% of a replacement. The full decision framework is in our repair vs replacement guide.
  • Do the checks from the ground and the attic. Leave the roof to a professional.
Table of contents

Start with the roof's age

Before you look at a single shingle, find out how old the roof is. The closing documents, the permit record or the previous owner usually know. Age doesn't decide the answer by itself, but it tells you how to read everything else.

In Central Texas, expected service life is roughly:

  • 3-tab shingles: 12–15 years
  • Architectural (laminated) shingles: 15–20 years
  • Class 4 impact-resistant shingles: 18–24 years
  • Standing seam metal: 40–50 years

A roof well inside its range with one problem is almost always a repair. A roof near or past the end of its range with problems on several slopes is a replacement candidate, and the money spent repairing it tends to buy less time with each visit. The material-by-material detail is in how long roofs last in Texas.

Signs you can see from the ground

Walk around the house on a clear day, ideally in morning or late-afternoon light, which throws shadows across raised or missing pieces. Binoculars help. Look at every slope, not just the front.

Curling, cupping or clawing shingles

Edges turning up (cupping) or the middle bulging up while the edges stay down (clawing) mean the asphalt has dried out and lost its flexibility. Heat from above and an overheated attic from below both speed this up. On one slope, it may point to a ventilation problem on that side. On every slope, the roof is at the end of its life.

Missing, creased or lifted shingles

A few missing tabs after a windstorm is a repair. A horizontal crease line across a tab means the wind lifted and folded it, which can break the seal and damage the mat even if the shingle laid back down. Creases on many shingles across several slopes are a much bigger problem than one blown-off piece.

Bald patches and granules in the gutters

Granules shield the asphalt from the sun. New shingles shed loose excess granules for the first several months, and that is not a defect. Bare spots of exposed asphalt, without unusual weather to explain them, are a different matter.1 Widespread bald patches mean the asphalt is now exposed to UV and will age fast. Hail can also knock granules loose in round spots. See shingle granules in gutters for how to tell normal shedding from wear.

A sagging ridge or a wavy roof plane

The ridge should be straight and the roof planes flat. A dip in the ridge or a sag between rafters can mean water-damaged decking or a structural problem in the framing. This is the one sign that warrants a professional look soon, regardless of the roof's age.

Damaged flashing and nail pops

Lifted metal at a chimney or wall, rusted pipe flashing, and small raised bumps across the field (nails backing out) are usually repairs on their own. Many of them at once on an older roof suggest the whole fastening and flashing system is aging out.

Dark streaks

Dark streaks running down a roof look alarming, but on their own they are not a reason to replace. Judge the roof by the other signs on this page.

Signs you can see from the attic and inside the house

If you can safely get into the attic, take a flashlight on a sunny afternoon and, if possible, again after a rain. Step only on the framing, not the ceiling drywall between it.

  • Daylight through the roof boards. Pinpoints of light at nails or gaps along a valley mean water has a path in. Light along the ridge can be a ridge vent doing its job; light anywhere else is a problem.
  • Water stains on the deck or rafters. Dark rings or streaks, especially below valleys, chimneys and pipes. Fresh stains that feel damp mean an active leak.
  • Wet or matted insulation. Insulation that is compressed or stained has been wet. It insulates poorly afterward.
  • Soft, sagging or delaminating decking. Push gently on the underside of the deck between rafters. Flaking OSB layers or sagging between supports means water has been sitting in the system.
  • Rusted nail tips poking through the deck. Moisture is condensing in the attic. That usually points to a ventilation problem, which shortens shingle life from underneath. The residential code sets minimum attic ventilation.2 Check yours with the attic ventilation calculator.

Inside the house, look for ceiling stains, bubbling paint near the top of walls, and a musty smell in upstairs rooms. If you find active water, act quickly: the EPA advises drying water-damaged areas within 24 to 48 hours to prevent mold growth.3 For an active leak, get the roof protected first and diagnosed second.

What each sign usually means

No single sign settles it. What matters is how many slopes are affected and how old the roof is. This is how we read the most common findings:

SignOn one areaAcross most slopes
Curling or cuppingCheck ventilation on that sideRoof is worn out
Missing or creased tabsRepairWind damage; document it
Bald patchesRepair or monitorAsphalt exposed; replacement
Flashing or nail popsRepairFastening system aging out
Attic stainsFind and fix the sourceMultiple leak paths; inspect fully
Soft or sagging deckRepair deck and roofingReplacement with decking
Sagging ridgeHave it inspected soon

Hail is its own category. Hail damage often isn't visible from the ground, and whether it is functional or cosmetic matters for insurance. If a storm has passed over, read understanding hail damage and have the roof documented before you decide anything.

When it's a repair instead

Plenty of roofs with a leak don't need replacing. A failed pipe boot, a few wind-lifted shingles or one leaking chimney flashing on a roof with years of life left is a repair, and a good contractor should say so. Our rule is simple: repair wins when it costs under 20% of a replacement. On a 2,000 square foot roof, where Atrium's published asphalt replacement price is about $11,000–$13,200 including the standard waste allowance, that line falls around $2,200–$2,640.

The rest of the decision, including age bands, isolated versus systemic damage, and cost per year of remaining life, is in roof repair vs replacement. If repair is the answer, start at roof repairs. If it isn't, see roof replacement.

How to check safely

Everything in this guide can be done from the ground, a window, or the attic. Don't walk the roof. Falls were 350 of 937 construction deaths in 2015,4 and a homeowner on a hot, steep, granule-covered roof is at more risk than a trained crew with fall protection.

Take photos of what you find, with dates. If you hire someone to inspect, those photos help them focus, and if a storm caused the damage, dated photos are useful later.

An engineer's perspective

The physics and building science behind this

A roof fails in one of two ways. Locally, at a joint: a flashing, a pipe boot, a valley. Or globally, when the material itself has aged out. Local failures are repairs, no matter how dramatic the ceiling stain. Global failure is when replacement becomes the honest answer, because every repair you make is surrounded by material that is failing for the same reason.

Asphalt ages by losing the oils that keep it flexible. Heat drives them out, and UV attacks the asphalt wherever the granules are gone. That is why curling and bald patches across many slopes are the most reliable replacement signs: they are evidence of the aging mechanism itself, not of one bad detail. The attic is the second witness. Moisture, stains and a hot, stagnant attic tell you whether the roof has been aging from underneath as well, which changes what the new roof needs, not just whether you need one.

Why this matters in Texas

Central Texas climate changes the answer

Central Texas compresses roof life. Long, hot summers dry asphalt from above, under-ventilated attics bake it from below, and spring hail bruises it in between. That is why the service-life figures on this page are shorter than the ratings printed on shingle wrappers, and why a 15-year-old roof here deserves a closer look than it would in a mild climate.

Roof age also matters for insurance. Many policies pay replacement cost. A growing number pay roof damage at actual cash value or on a schedule based on the roof's age. Your declarations page says which.5 And most home policies don't cover water damage from gradual leaks.6 Catching an aging roof before it leaks protects the house and avoids a claim your policy may not cover.

Warning signs to watch for

  • A dip in the ridge line or sagging between rafters.
  • Active water: damp stains in the attic or on a ceiling after rain.
  • Daylight through the roof deck anywhere other than a ridge vent.
  • Bare asphalt showing on several slopes with no recent storm to explain it.
  • Curling or cracking on most slopes of a roof near the end of its expected life.
  • The third repair call in a couple of years to the same roof.

Cost considerations

Atrium's repair minimum is $250, and most simple repairs run about $499. Asphalt replacement on a 2,000 square foot roof runs about $11,000–$13,200, including the standard waste allowance. The gap between those numbers is why the repair-or-replace call matters.

Engineer's recommendation
Check the age first, then look from the ground and the attic. If the signs are on one area, get a repair price. If they are on most slopes, or the roof is near the end of its service life, get a written report on the whole system before you spend money on patches. Our free inspection includes a written report you keep, and it will say so when the answer is a repair, or nothing yet.

Frequently asked questions

Look for age near the end of the material's service life, curling or cracking on most slopes, bald patches, a sagging roof line, and from the attic, daylight, stains or soft decking. Signs on one area usually mean a repair; signs across the roof mean replacement.

In Central Texas, architectural shingles typically last 15–20 years, 3-tab shingles 12–15 years, Class 4 impact-resistant shingles 18–24 years, and standing seam metal 40–50 years.

Not always. New shingles shed loose excess granules for months, and that's normal. Bare patches of exposed asphalt without a storm to explain them mean the shingles are wearing out.1

On a roof with plenty of life left, yes. That is a repair. If the damage is spread across most slopes or the roof is near the end of its life, patching usually buys little time.

Not necessarily. Many leaks come from one detail, like a pipe boot, flashing or valley, and are repairs. A leak on an old roof with widespread wear is different, because the next leak is likely somewhere else.

A dip in the ridge or between rafters can mean water-damaged decking or a framing problem. It should be inspected soon, whatever the roof's age.

Curling across most slopes means the asphalt has aged out, and the roof is a replacement candidate. Curling on one slope can point to a ventilation problem on that side.

When the damage is isolated, the roof has life left, and the repair costs under 20% of a replacement. On a 2,000 square foot asphalt roof at Atrium's published price, that line falls around $2,200–$2,640.

On their own, no. Dark streaks are not a replacement sign by themselves. Look at curling, bald patches and the attic instead.

Many policies pay replacement cost. A growing number pay roof damage at actual cash value or on a schedule based on the roof's age. Your declarations page says which.5 Most policies also don't cover damage from gradual leaks.6

No. Check from the ground with binoculars, from windows and from the attic. Falls are a leading cause of construction deaths, and a roof is more dangerous for a homeowner than for a crew with fall protection.

Sources & technical references

Codes & standards

Laws & regulators

Manufacturer documents

Government data

  • [4]National Campaign to Prevent Falls in Construction, United States, 2017 (falls were 350 of 937 construction deaths in 2015). CDC, Morbidity and Mortality Weekly Report. www.cdc.gov/mmwr/volumes/66/wr/mm6616a5.htm. Accessed October 27, 2026.

Still have questions?

Talk with Atrium Roofing's engineering-led team before making a roofing decision. We give straight answers, walk your roof in person when needed, and never pressure you into a scope you don't need.