New Roof Shingles Buckling

This then telegraphs to the shingles above.

New roof shingles buckling.

Asphalt shingles sometimes buckle slightly and in an irregular pattern due to moisture in a the materials of a new roofing system. If you have a newly installed roof and the shingles are buckling take a good look at the shingles to see if they appear to be porous or holding water. Another cause of buckling can be wetting of the felt paper which will expand if it gets wet. The wetness gets absorbed by the felt underlayment causing the felt to wrinkle.

It doesn t matter how old or new your roof is buckling shingles indicate it needs a professional inspection right away. This sheathing is generally made from plywood or a similar material. Buckling shingles look like something is underneath the shingles pushing them upward. However newer shingles that are made in a poor quality way may also take in water and hold it which can cause buckling as well.

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. Buckling shingles are a sign of a major problem with your roof. 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. You also may have curling shingles where the center of the shingle looks concave and the edges turn up.

Under your shingles there is a layer called the roof sheathing. 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. But the moisture evaporates as the materials reach equilibrium with the the surrounding air and the shingles settle back down flat.