Roof Shingles Buckling

Curling and buckling are the most common phrases used to describe the problems with your roof shingles.

Roof shingles buckling.

Roofs buckle because either the roofing underlayment has wrinkled or the wood deck itself has shifted for some reason. Common reasons for buckling. The wetness gets absorbed by the felt underlayment causing the felt to wrinkle. Shingle buckling is one of those awful things that can happen to a roof through no fault of anyone.

Under your shingles there is a layer called the roof sheathing. And this is a serious problem because if minor buckling is not addressed it could require a full roof replacement. This buckling is the result of the shingles being distorted due to movement of the roof deck on which they are applied. Occasionally the buckling is caused by poor workmanship wrong materials or possibly by a problem with the structure itself.

This then telegraphs to the shingles above. Ripples or waves on the roof surface are a sure sign that the shingles or decking has probably buckled. This is most probably an indication of poor ventilation. Buckling of asphalt and fiberglass shingles is a fairly common occurrence although it usually occurs in the first year after installation and sometimes diminishes over time.

This lack of ventilation prevents the moisture from exiting the attic space. Buckling shingles look like something is underneath the shingles pushing them upward. This action causes buckling that can be seen through the roof shingles. Buckling shingles are a sign of a major problem with your roof.

Asphalt shingles have never been shown to buckle by themselves. Buckling describes a shingle that is raised in the middle. A buckle is formed when moisture is trapped under the shingle. If a roof is poorly ventilated and in many cases not ventilated at all moisture will build up in the attic.

You also may have curling shingles where the center of the shingle looks concave and the edges turn up. The pieces of sheathing are supposed to be spaced about 1 8 inch apart so that they have room to expand and contract as the temperature changes. The most common cause appears to be movement in the roof sheathing with changes in moisture levels. Asphalt shingles occasionally show buckles or ridges along the length of courses up the roof.

But the moisture evaporates as the materials reach equilibrium with the the surrounding air and the shingles settle back down flat. It is caused as a result of the movement of the wood roofing deck or wrinkling of the underlayment. It doesn t matter how old or new your roof is buckling shingles indicate it needs a professional inspection right away.