You don’t need a ladder to catch most roof problems early. The majority of signs of roof damage are visible from your yard, and a ten-minute walk around the house twice a year is enough to spot them before they become water in your living room. Here’s what to look for, and which findings justify calling someone today.
Do This Safely
Everything in this guide is done from ground level. A pair of binoculars is the only equipment you need, and it genuinely helps — most of these signs are easier to confirm at 8x magnification than from a ladder, and considerably safer.
Walk the full perimeter of the house slowly. Check each roof plane, and pay attention to where planes meet, since transitions fail before flat expanses do.
1. Curling Shingles
Shingles that curl up at the edges or corners have lost their seal and their flexibility. Curling is usually a sign of age, but hail and wind cause it too, and poor attic ventilation accelerates it dramatically by cooking shingles from underneath.
Severity depends on scope. A few curled shingles in one area is a repair. Widespread curling across multiple roof planes generally means the roof surface has reached the end of its service life, and patching will buy months rather than years.
2. Missing Shingles
Gaps where shingles have blown off are the easiest sign to spot and the most urgent. Every missing shingle exposes the underlayment directly to weather, and underlayment alone isn’t designed for long-term exposure.
A single missing shingle after a storm is a straightforward repair — but get it done promptly rather than waiting for a leak to confirm the problem.
3. Granules in Gutters
Asphalt shingles are surfaced with mineral granules that protect the asphalt underneath from UV degradation. As shingles age, those granules shed.
Check your gutters and the ground beneath your downspouts. Some granule loss is normal, particularly on a brand-new roof shedding loose manufacturing granules. Ongoing accumulation is the warning sign — if you’re seeing a steady buildup of what looks like coarse black sand, the shingles are wearing through their protective layer, and UV damage accelerates sharply once that’s gone.
4. Bald or Dark Patches
Related to granule loss, but visible on the roof itself: areas where granules have worn away appear as darker, shinier patches against the surrounding surface. Binoculars make these obvious.
Patches concentrated on south- and west-facing slopes are typical, since those take the most sun exposure.
5. A Sagging Roofline
Stand back from the house and look along the ridge and eave lines. They should be straight. A dip, wave, or visible sag indicates a structural problem beneath the surface — usually rotted decking or compromised framing from long-term moisture intrusion.
This one is urgent. A sagging roofline is not a shingle problem, and it won’t be solved by a surface repair. Call a professional promptly, because structural issues worsen and get more expensive on a predictable curve.
6. Damaged or Separated Flashing
Flashing is the metal at transitions: around chimneys, skylights, vents, and in valleys where roof planes meet. From the ground you can often see flashing that’s lifted, bent, rusted, or pulled away from the surface it should be sealed against.
Flashing causes more leaks than any other roof component, and it typically fails well before the shingles around it do. Visible flashing damage warrants a call even when everything else looks fine.
7. Gutter Problems
Gutters that sag, pull away from the fascia, or have separated at the seams cause roof damage rather than just indicating it. When gutters fail, water backs up under the roof edge and into the fascia and soffit, rotting the structure at the eave.
Also look for gutters full of debris. Clogged gutters hold standing water against the roof edge, and in cold climates they contribute to ice dams.
8. Signs Visible From Inside
Two indoor signs belong on any ground-level check:
Ceiling or wall staining, particularly on upper floors, indicates water intrusion. If you find stains, our guide to finding a roof leak covers how to trace the source, which is rarely directly above the stain.
Daylight through the attic sheathing. Go into the attic with the lights off and look up. Any visible daylight is a hole, and where light passes, water follows.
What a Ground-Level Check Can’t Tell You
Be clear about the limits. From the ground you cannot assess how firmly shingles are still attached, how much material thickness remains, whether decking beneath is sound, whether hail has bruised shingles without visibly breaking them, or whether flashing is properly integrated under the surface layers.
Hail damage in particular often leaves shingles looking fine from below while the mat underneath is fractured — damage that leads to failure a year or two later, long after the insurance claim window has closed. That’s why a professional inspection after any significant storm matters regardless of what you can or can’t see.
When to Call Someone
Call now for: a sagging roofline, visible daylight through attic sheathing, active interior water stains, multiple missing shingles, or any damage following a hail or windstorm.
Call within a few weeks for: isolated missing or curling shingles, visible flashing problems, separated gutters, or ongoing granule accumulation.
Monitor and check again for: a small amount of granule loss on a newer roof, or minor cosmetic wear with no other symptoms.
A documented professional inspection is worth getting even when your findings seem minor — it establishes your roof’s condition on a date, which matters if you later file a storm claim. Our roof inspection guide covers what a thorough inspection should include and what it costs.
If anything on this list turned up, you can request a vetted roofing contractor in your area for an assessment from someone whose license, insurance, and background have already been verified.
For additional guidance on identifying storm-specific damage, GAF’s guide to understanding roof storm damage covers inspection and next steps in detail.
