What should I look for regarding roof condition?
Are you standing on a roof time bomb? Here’s what most buyers miss—and what to check now.
Why roof condition matters
A bad roof destroys value fast. Water damage, mold, and rot spread behind walls. Insurance problems follow. A smart buyer treats the roof like the foundation: inspect first, assume second.
11‑point roof inspection checklist (quick, direct)
- Age of roof: Ask for installation date. Asphalt shingles usually last 15–25 years. Clay, metal, and slate last longer.
- Shingle condition: Look for curling, cracking, missing shingles, or granule loss (bald spots).
- Flashing: Check metal flashing around chimneys, vents, valleys and skylights. Loose or corroded flashing leaks.
- Gutters and downspouts: Blocked or oddly stained gutters show poor water flow or past leaks.
- Roof valleys: These concentrate water. Missing shingles or bending here is major risk.
- Ridge and hips: Staples or broken caps are signs of wear or poor installation.
- Ventilation and soffits: Poor ventilation shortens shingle life and causes ice dams in cold climates.
- Interior signs: Water stains on ceilings, mold, sagging drywall or attic insulation that’s damp.
- Attic inspection: With a flashlight, check roof decking for dark streaks, soft spots, or daylight showing through.
- Structural sag: Any dip in roofline could be framing or decking failure.
- Recent repairs: Patch jobs can hide bigger problems. Ask for receipts and contractor info.
Red flags that deserve a hard stop
- Active leaks inside the home.
- Multiple patched areas across the roof.
- Mold or rot in attic framing or sheathing.
- Missing or rusted flashing around chimneys and vents.
- Major sagging or soft spots underfoot.
What to ask during the inspection
- How old is the roof and who installed it? Get permits if available.
- Any warranties? Are they transferable?
- Was the roof replaced or layered over old shingles?
- Can the inspector provide roof deck photos and moisture readings?
When to call a roofing pro
If you spot soft decking, persistent stains, corroded flashing, or widespread missing shingles, schedule a licensed roofer for a full diagnostic and written estimate. Small issues become big costs fast.
Simple math buyers should use
Repair estimate > 5% of home price? Negotiate. Replacement estimate > 10%? Walk if budget is tight.
I inspect roofs for buyers every week. I know local contractors, typical lifespans for area materials, and the tricks sellers use to hide problems. If you want a fast, no-nonsense roof review and a list you can use in negotiations, email tony@sousasells.ca or call 416-477-2620. Visit https://www.sousasells.ca for client results and roof vendor referrals.
Act now. A small inspection today saves thousands tomorrow.
