New Roof Shingles Bubbling

The plywood should have been replaced where there were problems.

New roof shingles bubbling.

One can see clearly lots of ripples bumps all over the roof but one section is much worse than the rest. A roof blister is a raised area where there is a loss of adhesion of the roof. Those ripples bumps can be pressed down easily which suggests that there is space between the shingle and decking i e shingles are not properly supported by the decking where there are ripples. The most common cause appears to be movement in the roof sheathing with changes in moisture levels.

This sheathing is generally made from plywood or a similar material. If left untreated a blister can grow larger and allow more moisture to get in so that the problem gets worse until more extensive repairs and possible replacement is necessary unless it pops. This area can fill up with air or water to form a blister which looks like a bubble on your roof. Buckling shingles are a sign of a major problem with your roof.

Failure to apply shingles as directed by the shingle manufacturer s recommendations. If you see anything looking off with the way your shingles are laying give your trusted roofing contractor a call and have your roof checked out right away. The nails slip out of the sheathing and create small visible bumps on the. Especially if the roof is soft there it seems this must be a case of the plywood underneath having gotten wet and as it dried out then warping and bubbling up underneath.

What causes shingles to buckle. The wetness gets absorbed by the felt underlayment causing the felt to wrinkle. This is a roofing manufacturer s approval that must be met. It doesn t matter how old or new your roof is buckling shingles indicate it needs a professional inspection right away.

You also may have curling shingles where the center of the shingle looks concave and the edges turn up. Sometimes new shingles are applied directly on top of old uneven shingles. Buckling can occur if the wrong type of nails were used to connect the sheathing to the rafters. Thursday june 14 2018 asphalt shingles sometimes buckle slightly and in an irregular pattern due to moisture in a the materials of a new roofing system.

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. This then telegraphs to the shingles above. Buckling shingles look like something is underneath the shingles pushing them upward. Under your shingles there is a layer called the roof sheathing.

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. Standard asphalt shingles feature an adhesive strip that softens during warm weather especially when the sun s rays hit the roof directly.