How to Know If You Need a New Roof: 7 Warning Signs Michigan Homeowners Should Watch For

Most Michigan homeowners don't think about their roof until something leaks. By then, repairs are often more expensive than they would have been months earlier. Here are the seven warning signs Crown Roofing looks for on every inspection — the same signs you can watch for from the ground.

1. Your Roof Is Over 20 Years Old

Standard architectural asphalt shingles last 20–30 years in Michigan climate. If you know your roof is approaching or past 20, it's time for a professional evaluation regardless of how it looks from the ground.

2. Curled, Cracked, or Missing Shingles

Shingles at the edges of the roof are the first to fail. Walk around your home and look for anything irregular — curling corners, cracks, or bare spots where shingles are missing entirely.

3. Granule Loss in Gutters

Asphalt shingles shed their protective granules as they age. Significant granule buildup in gutters or at downspout splashouts means your shingles are losing their UV protection.

4. Sagging Roof Deck

Any dip, sag, or wave in your roofline is serious. It means the decking underneath is water-damaged or structurally compromised, and delaying replacement risks a partial collapse.

5. Daylight in the Attic

Pinpoints of light visible through your roof deck mean there are holes somewhere. Those holes let in water, pests, and heat loss.

6. Water Stains on Ceilings or Walls

Interior stains are a sign that water has already bypassed multiple layers of your roof system. The damage is worse than the stain suggests.

7. Rising Energy Bills

A deteriorating roof often means compromised insulation and ventilation. If your heating bills have crept up year over year, your roof may be part of the problem.

If three or more of these apply to your home, call Crown Roofing at (734) 359-7140 for a free drone inspection. We'll tell you honestly whether repair or replacement is the right call.