Shingles curling or cracking: repair, section, or replace?

What to do, in order

1. Survey from the ground with binoculars: which slopes? One slope = heat/ventilation issue; all slopes = age.
2. Check the attic on a sunny day: light through boards, moisture stains, or a hot attic (>130°F in summer) means ventilation is cooking the shingles from below.
3. Press-test a cracked shingle gently (stay off the roof if it's steep or two-story): brittle and crumbling = advanced age.
4. Count the damage: under 10 shingles and localized = spot repair ($300–$800); one slope = section replacement; everywhere = plan full replacement.
5. Collect 2–3 quotes and ask each: overlay vs tear-off (tear-off is almost always right), underlayment spec, and ventilation fix if that's the cause.
6. Insurance note: curling from age is NOT covered; storm damage is. Don't file an age-related claim — it can hurt you at renewal.

Red flags — stop and call a pro

• Curling plus granules filling the gutters — the roof is in its final 2–3 years
• Daylight through roof boards in the attic
• Sagging roofline visible from the street — deck or structure problem, not just shingles
• Active leaks during ordinary rain

Prevention

Ensure balanced attic ventilation (intake soffit + exhaust ridge), keep gutters clean so water never backs under the first course, and replace with architectural shingles — the 10–15% premium buys a decade.

This guide is maintained by the ee.ltd editorial team — reviewed for 2026. Browse all home repair guides or compare roofing costs.

Related guides

• Roof leaking now: how to contain it until the roofer comes
• Hail damage on a roof: what counts and what to do
• Wind damaged shingles: the 72-hour checklist for insurance
• Gutters overflowing: 4 root causes (it's not always leaves)

What this repair typically costs

• Roof repair cost guide
• Asphalt roof replacement cost guide
• Metal roof installation cost guide
• Roof inspection cost guide