Thermal Splitting Roof Shingles

This damage would lower the defense of your home by allowing water to leak into your roof.

Thermal splitting roof shingles.

Just because shingles are thermal cracked dosen t give the insurance company a get out of jail free card. Meanwhile they shrink in cold temperature and the joints between them become larger. Splitting thermal splitting occurs due to changes in temperature that cause shingles to expand and contract. What is the cause of thermal splitting cracks in fiberglass based asphalt roof shingles.

It may also form a diagonal pattern up the roof following the stair up pattern of the offset joints made during installation. On the other hand cracking is caused by more gradual wear and tear with thermal expansion creating smaller tears at a time so the cracks are more shallow. It s possible that shingles made by some manufacturers do not meet the astm standards for tear resistance. Shingles expand in warm temperatures which cause the joints between them to decrease in size.

These conditions create stresses between the two assemblies that if extreme enough can result in shingle splitting or buckling. Shingle splitting due to temperature related expansion and contraction is called thermal splitting. Thermal splitting is due to the contraction and expansion the shingle experiences as a result of changing temperatures. Thermal splitting happens when the shingles on your roof expand and contract at quickly.

Regardless of what you call it this tearing is caused by thermal expansion of the material. It is characterized by thin large cracks between asphalt shingles. They can be crease by wind damage at the same time. This usually happens where the roof shingles connect to the joints in the underlying layer of shingles.

Even where shingles meet the standards it s possible that the standards themselves were defective. Thermal splitting typically happens where shingles bridge the joints in the underlying layer of shingles. A variety of factors lead to this problem including thermal cycling and the adhesive that holds each shingle in place. Reason behind thermal splitting in asphalt shingles.

Thermal splitting is due to temperature related expansion and contraction. Whether you have conventional 3 tab shingles or laminated asphalt shingles you may have to deal with thermal damage like this if your home is exposed to extreme temperature swings. Splitting over shingle joints. Thermal splitting is common in low quality asphalt shingles.

The term thermal splitting or cracking is a bit of a misnomer as in most cases the result of thermal splitting is a tearing of the shingles.