Have you noticed areas of your roof that appear to be lifted up, where the shingles appear to be detached from the rest of the roof? If you see this on your roof it may be a sign that your shingles are buckling. When installing your roof, the spacing of roof sheath is very important. When properly installed this will avoid the potential for buckling shingles.

Buckling of shingles occurs when excessive moisture is in the attic due to condensation. When moisture gets into the attic it can cause the OSB or plywood sheathing to swell. This results in the buckling either upward or downwards of the sheathing.

This can be avoided by installing these sheath panel tite with proper spacing. Installing these sheath panels without spacing can cause problems down the road. During installation, it is recommended to leave 1/8th inch worth of space between all panel edges to allow for expansion.

In order to avoid expansions in sheathing after installation is to make sure your attic is properly ventilated. Because buckling is due to expansion and expansion is due to moisture, it is important to have proper ventilation to avoid moisture getting into the wood. When warm air from the living space of your home travels upward and meets the cold air it causes condensation. Ventilation in the attic will help move the damp air out and avoid condensation and moisture in the air. The recommended amount of ventilation is 1 square foot for 150 square feet of attic space.

If you notice buckling in your roof it is important to call the professionals team at Aqua Barriers Inc. for your roofing consultation.