Your roof is your home’s first line of defense against rain, wind, and snow. But when was the last time you gave it a good look? At Northwoods Home Inspection Group, we’ve seen how small roofing issues can turn into big, costly leaks if ignored. Catching problems early saves you stress—and money. Here’s what to watch for before the drips start.
1. Missing or Damaged Shingles
Shingles are like armor for your roof. If they’re cracked, curled, or missing entirely, water can sneak underneath. After a windy day, take a quick look—those bare spots won’t fix themselves. Pro tip: A single missing shingle might seem minor, but it’s an open invitation for trouble.
2. Granule Loss in Your Gutters
Ever noticed gritty bits in your gutters or downspouts? Those are granules from your asphalt shingles wearing away. Losing them means your shingles are aging fast, making them less waterproof. If your gutters look like a sandbox, it’s time to call us for a closer look.
3. Water Stains on Ceilings or Walls
Spotted a brownish ring on your ceiling? That’s a leak’s calling card. Even if it’s not actively dripping, water stains mean moisture has already breached your roof. Don’t wait for a downpour to confirm it—get it checked ASAP!
4. Moss or Algae Growth
A little green on your roof might look charming, but moss and algae trap moisture, eating away at shingles over time. They thrive in shady spots, and while they may seem like just a cosmetic issue, they signal that your roof’s surface is breaking down.
5. Sagging or Uneven Rooflines
Stand back and scan your roof. Does it dip or sag anywhere? That could mean rotting decking or weakened supports under those shingles. A sagging roof isn’t just ugly—it’s a structural red flag.
6. Damaged Flashing Around Chimneys and Vents
Flashing—the metal strips sealing gaps around chimneys, skylights, and vents—keeps water out. If it’s rusted, cracked, or peeling, leaks are waiting to happen. This is a sneaky spot homeowners often miss, but we always check.
Why It Matters
The average roof repair costs between $300 and $1,000, but a full replacement? That’s $5,000-$10,000 or more, depending on your home. Spotting these signs early can keep your wallet happier. Plus, leaks don’t just damage your ceiling—they can lead to mold, which is a whole other headache.
What You Can Do
Grab some binoculars (stay off that ladder!) and scan for these warning signs. If you spot any issues, contact a professional for an inspection. Don’t let your roof surprise you with a leak—because a dry home is a happy home!