At Ontario Tech Roofing, we know that for homeowners, understanding the visible signs of roof distress is the first crucial step in protecting your property. We empower our clients with knowledge, helping you identify problems early before they escalate into costly repairs.
Knowing what to look for—both from the ground and indoors—can signal the moment you need professional help. Here is your essential guide to performing a visual roof inspection.
Phase 1: The Ground-Level Walk
The safest and easiest way to start your inspection is by walking around your home. It is important to look for a number of red flags, which include but are not limited to:
1. Gutter Debris
What to Look For: Homeowners need to look at the contents of their gutters and downspouts wherever you can. Do you see excessive amounts of asphalt shingle granules that look like coarse, black sand?
What it Means: If you see a heavy accumulation, it suggests the protective top layer of your shingles is wearing out rapidly. This often means the shingle is nearing the end of its lifespan and is more vulnerable to UV damage and moisture. In this case, it is important to call us for your free roof inspection!
2. Shingle Condition
What to Look For: You can use binoculars or even a high-definition camera to carefully examine the roof surface. Try to look for shingles that are:
Either lifting up or turning down.
Ones that appear wavy or rumpled; these can often be due to underlying issues with the decking or poor ventilation.
Any Missing shingles!
3. Discoloration!
- What to look for: It is important to be on the lookout for things like moss or any dark streaks. The issue is that this indicates persistent moisture.
- What it Means: It is important to note that moss retains water like a sponge. This means it can lift shingles, leading to more serious moisture infiltration and premature material degradation. In this case, you will want to call us right away!
4. Flashing Integrity
What to Look For: Be sure to check out the flashing and other materials around your chimney, vents, skylights, and in the valleys. It is important to be vigilant for cracked, rusted, bent, or heavily sealed areas.
What it Means: Good flashing is VERY important in preventing any leaks. By safeguarding this area, you are preventing future issues.
Phase 2: The Interior 2026 Roof Inspection (The Hidden Signs)
1. Attic Moisture and Insulation
What to Look For: Use a flashlight and look at the underside of the roof deck as well as the top surface of any insulation, if possible.
Water Stains: Look for dark patches or trails on the wood decking.
Mould/Mildew: Fuzzy or discolored growth,
Damp Insulation: ANYTHING that looks compressed or wet in any way
What it Means: This will most likely indicate a current or previous leak. It is important that it can also result in the insulation losing its power.
2. Ceiling and Wall Indicators
What to Look For: In your home, look up! Look at the ceilings/exterior walls, etc, for any stains or signs of peeling.
What it Means: These are definitive signs of an active leak. The roof inspection company will want to know where this is!
When to Call in the Experts at Ontario Tech Roofing
It is important to note that yes, while your visual check is invaluable, these issues require the skilled eye and safety equipment of a professional. Please DO NOT attempt to climb onto your roof, especially in wet or icy conditions.
Instead, be sure to call Ontario Tech Roofing immediately, if you see some things like:
Widespread Shingle Damage: Missing/ severely damaged shingles.
Compromised Flashing: If you notice any rust, large gaps, or displaced metal around penetrations.
Internal Leaks: Any water stains or moisture in your attic or ceilings.
Age: Your roof is over 15 years old. Even if it looks fine, materials degrade over time.
All in all, a comprehensive roof inspection by our team will include looking at all these things and providing you with a clear and honest report about what is going on and what work is needed.
Contact Ontario Tech Roofing today to schedule your preventative roof inspection!






