Your West Island Roofer for 38 years!

Outside Roof Inspection

Firstly, you should not inspect your roof yourself. Always use a professional such as Argus Roofing to do the inspection.

To better understand the typical parts of a roof, see the diagram at the right.

The following is a guideline of what Argus Roofing Inspectors look for.

We do not recommend that you inspect your roof by walking across it. Rather, start by taking a pair of binoculars with you into the yard, find a spot without trees or other buildings blocking your view and look for any of the following signs:

Blistered, curled or split shingles.
Loose or missing shingles or tiles.
Broken or loose shingles at the ridge lines and hip lines.
Loose nails. A loose nail means an open hole, which can cause leaks and subsequent water damage to your roof.
Exposed nails. These also can lead to leaks in your roof as the water seeps around the head of the exposed nails.
Dark patches on asphalt shingles and/or large amounts of granules in the rain gutters. This could mean that the granular coating of your roof is wearing away and needs to be replaced.
Sagging either on the ridges or in the center of the roof.
Rusty or corroded metal (flashing) and loose shingles in the valleys, plumbing vents or near chimneys. You may need to remove leaves and other debris before a proper inspection can be done. Remember that a lot of leaf debris in the valleys, plumbing vents, or near the chimney can cause problems with your roof if not dealt with promptly at the end of the season.
Rusty metal or loose shingles in locations where a vertical side of the house meets the roof.
Overflowing gutters or excess water pooling near the foundation of the house.