Signs you need a new roof
Roofs rarely fail all at once. They show their age first, in the shingles, the gutters, the attic, and the ceiling, long before water pours in. Catching these signs early is the difference between a planned replacement and an emergency one. Here is what to look for.
Key takeaways
- Age is the first clue: an asphalt roof past about 20 years is a candidate for replacement even if it looks intact from the ground.
- Curling, cupping, or cracked shingles mean the asphalt has dried out and is no longer sealing.
- Bald patches and granules collecting in the gutters signal shingles near the end of their life.
- Inside the house, ceiling stains, a musty attic, or daylight through the roof boards are urgent signs.
- A sagging roofline points to a structural or moisture problem and needs a professional inspection right away.
Look at the shingles
- Curling or cupping: edges that lift or centers that dish mean the shingles have dried and lost their seal, leaving them prone to wind and water.
- Cracked or missing shingles: scattered loss can be repaired; widespread cracking across the slope points to age, not a single event.
- Bald spots and granules in the gutters: the protective granules wash off as shingles wear, so a gutter full of them is a roof shedding its surface.
- Dark streaks or moss: usually cosmetic algae, but heavy moss can lift shingles and hold moisture against the roof.
Check inside and up close
- Ceiling stains: brown rings or spreading stains on upstairs ceilings mean water is getting past the roof.
- Attic clues: daylight through the roof boards, damp insulation, or a musty smell after rain all point to an active leak.
- Flashing failures: many leaks start at the flashing around chimneys, vents, and valleys rather than the shingles themselves.
Don't ignore the roofline
Stand back and look at the ridgeline. A roofline that sags or dips is not a shingle problem; it suggests trapped moisture, rotted decking, or a structural issue underneath, and it needs a professional inspection promptly. A sagging roof can go from a repair to a major job quickly once water has been working on the deck.
What to do next
- Get a professional inspection with photos; many roofers offer it free, and you want to see the damage yourself.
- If the roof is old and showing several of these signs at once, price a replacement rather than a patch.
- If a storm caused the damage, document it before any work; it may be a covered insurance claim.
Frequently asked questions
How do I know if I need a new roof or just a repair?
How long does an asphalt roof last?
Is a sagging roof an emergency?
See the numbers for your town
These ranges are national. Open a dashboard to see roofing prices modeled for your town, with a live estimator and local factors.
Cost figures in this guide are modeled national ranges for general planning, not quotes. Local pricing varies, always get an on-site assessment from a licensed pro before you commit. Evergreen guide