Why Does The Edge Of My Roofing Shingle Curl Up

Curling and missing shingles mean possible leaks in your roof which can eventually lead to water damage a much bigger problem.

Why does the edge of my roofing shingle curl up.

While lifespans vary by material and roofing manufacturer all shingles are similar in the fact that once they begin to curl it s time to start exploring new roofing options. The new roof gets laid over an uneven surface nailing through the old shingles is less secure and the original roof continues to age and move under the new one. Curling is when the edges turn up even if the center is flat. Cupping and curling shingles on your roof are a sign that something is wrong.

Ask your roofing contractor or the roofing supplier how to submit a claim. The page top photograph of curled roof shingles shows a worn out roof that needs replacement as soon as possible. Curling roof shingles as shown here will show a curling under at the edges of the shingle tab first at the lower edge and sometimes also at the two sides of the shingle tab. Roof shingles are not lying flat.

Finally i have heard of very cheap asphalt shingles swelling and buckling from moisture absorption but this should not be the case with a name brand shingle unless you got a defective batch. 2 lift the lower edge of the shingle above the damaged shingle enough to access the roofing nails that secure the. For more on this. Installing new shingles over old ones.

The shingles on your roof serve a dual purpose. Cupping is when the center of the shingle is concave or depressed so the tile forms a cup. Spot gluing of shingle tabs should never be larger than the size of a quarter to minimize the solvent problem. Regardless of the statues in your area it is improbable that the new shingles will line up with the existing ones.

So early curl is more likely. See our blog post how can i tell if a roof has more than one layer of shingles. There s several reasons some of them legal as to why installing a second layer of shingles over a first layer. If only the bottom row of shingles are curling up before any others right on the edge of the roof then the roofer put on the first layer incorrectly under those first visible tabs.

Access the roof and locate a shingle that has a cupped edge or curled corners. Lumpy bumpy or curling shingles that do not. They give the roof a finished look while forming a protective seal.