New Roof Buckling Shingles

Moisture in underlayment and roof decking.

New roof buckling shingles.

Then replace the area with new shingles. You may have curling or buckling shingles for a number of reasons but the. This sheathing is generally made from plywood or a similar material. Keep all decking materials dry before and after installation.

The wetness gets absorbed by the felt underlayment causing the felt to wrinkle. Cut out plywood felt or underlayment that is causing the buckle. Hard to tell from one photo but if the buckling followed the pattern of joints in the roof sheathing it can be caused by installing shingles over sheathing before it has had time to reach moisture equilibrium with the homesite environment. Out of all the causes of buckling shingles the most common and the most damaging reason.

Buckling shingles can sometimes be traced back to mistakes made during roof installation even though the buckling may not show up for a year or two after you get a new roof. If the felt paper is rained on it s best to let it dry out before installing shingles. This is what we call buckling. Look at the slopes of your home that get direct sunlight and if you notice the shingles are curling and losing granules it could mean the shingles are past their life expectancy.

Shingles that are curled or buckling are another sign that you may need a new roof. It is caused as a result of the movement of the wood roofing deck or wrinkling of the underlayment. In new construction it is best to let the roof sheathing acclimate to local conditions before installing the roofing although this is not always practical. Use an asphalt saturated felt shingle underlayment to cover the decking materials before applying the shingles.

This then telegraphs to the shingles above. Asphalt shingles sometimes buckle slightly and in an irregular pattern due to moisture in a the materials of a new roofing system. They should also be. Only use wood decking materials that are at moisture equilibrium with the local environment.

Make sure to apply shingles in accordance with the shingle manufacturer s recommendations. Depending on the size of the area to be fixed you may elect to replace all the shingles for symmetry and appearance. Why does your roof have buckling shingles. Under your shingles there is a layer called the roof sheathing.

Another cause of buckling can be wetting of the felt paper which will expand if it gets wet. But the moisture evaporates as the materials reach equilibrium with the the surrounding air and the shingles settle back down flat.