# Does my roof need replacing? Signs to check

Updated: 2026-10-24 · https://pros411.com/en/guides/roofers/signs-roof-needs-replacing

## Short answer

To tell if your roof needs replacing, check it from the ground and the attic, never from the roof. Warning signs: shingles that curl, crack or go missing, bald spots, lots of granules in the gutters, daylight or stains in the attic, and a sagging roof line. Find out how old the roof is. If you see several signs, ask a roofer for an inspection and a written report.

> Safety first: Do the checks from the ground and the attic. You do not need to climb on the roof to spot these signs.

## How to check if your roof needs replacing

![Cartoon house with an old, worn roof: curling and bald shingles](https://pros411.com/img/guias/signs-roof-needs-replacing.webp)

1. **An old roof shows its age.** Roofs wear out slowly. These checks take about half an hour, and you never have to climb up.
2. **Look at the shingles from the ground.** With binoculars: curled or cupped edges, cracks, bald spots and missing pieces. Check the side that gets the most sun.
3. **Check the gutters for granules.** Shingles shed their sandy granules as they age. A pile at the bottom of the downspout means they are wearing thin.
4. **Look for daylight in the attic.** With the light off, look for daylight between the boards. With a flashlight, look for stains, damp spots and sagging.
5. **Know its age, then call a roofer.** Check your home papers or permits for when it was put on. An inspection tells you if a repair still makes sense.

## What can wait and what cannot

- Can usually wait: a few missing shingles on a roof in good shape, or one worn vent boot. Those are repairs.
- Plan for it: curling or cracked shingles over most of the roof, bald spots and heavy granule loss.
- Do not wait: a sagging roof line, daylight in the attic, or leaks in several places.

## How long roofs last

It depends on the material and the climate. Asphalt shingles, the most common, often last around 15 to 30 years, less in hot, sunny or stormy places. Metal, tile and slate can last much longer. Age alone does not mean it needs replacing, so ask the roofer what they see on yours.

## Getting a fair inspection

- Ask for a written report with a photo of each problem.
- Ask whether a repair would buy a few more years.
- For a replacement, get two or three estimates for the same work so you can compare them.

## When to call a roofer

- You see daylight or water stains in the attic.
- The roof line looks wavy or sagging from the street.
- Shingles are curled, cracked or missing over large parts of the roof.
- The roof leaks in more than one spot.
- Your insurer asks for a roof inspection or says the roof is too old.

Find roofers in your city: https://pros411.com/en/roofers

## Frequently asked questions

### How do I know if my roof needs to be replaced or repaired?

If the problem is in one spot, like a few missing shingles or a cracked vent boot, a repair usually works. If the shingles curl, crack or shed granules over most of the roof, or it leaks in several places, plan a replacement.

### How long does a roof last?

Asphalt shingle roofs often last around 15 to 30 years, less in hot, sunny or stormy places. Metal, tile and slate last longer.

### Can I check my roof without climbing on it?

Yes. Binoculars from the ground, the gutters and the downspouts, and a flashlight in the attic show most of the warning signs. Leave the close-up look to a roofer.

### Is it bad to have granules in my gutters?

A few after a new roof goes on is normal. A lot on an older roof means the shingles are wearing out and losing their protection from the sun.

### Can new shingles go over old ones?

Some local codes allow one extra layer, but many roofers advise tearing off the old one so they can check the wood underneath. Ask what your code allows.