Thermal Splitting Roof Shingles

These conditions create stresses between the two assemblies that if extreme enough can result in shingle splitting or buckling.

Thermal splitting roof shingles.

Asphalt shingle thermal splitting. 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. Thermal splitting is common in low quality asphalt shingles. January 8 2019 by brienne gebhart.

Certain conditions can cause asphalt shingles to crack such as high winds impact from hailstones or airborne debris. A lesser known yet equally damaging cause is thermal splitting. Thermal splitting typically happens where shingles bridge the joints in the. Thermal splitting occurs due to changes in temperature that cause shingles to expand and contract.

How thermal splitting happens. A variety of factors lead to this problem including thermal cycling and the adhesive that holds each shingle in place. What is thermal splitting. Roof shingles are exposed to heat rain and humidity.

If the roof is fairly new cracking may be a sign of a weak mat or low quality shingles. Shingle splitting due to temperature related expansion and contraction is called thermal splitting. If thermal expansion is having an negative effect on your roofing system this is a good indicator that the asphalt shingles installed on your roof are defective or of low quality. Thermally split shingles aren t randomly strewn out across the roof surface.

Rogers roofing the leading roofing company discusses facts about this unwanted shingle damage and how to prevent it from occurring. Craze cracking in organic or fiberglass shingles is an indication of aging. Too much filler in the asphalt mix may also cause the same. Thermal splitting is due to temperature related expansion and contraction.

Thermal splitting is due to the contraction and expansion the shingle experiences as a result of changing temperatures. This usually happens where the roof shingles connect to the joints in the underlying layer of shingles. The catastrophic early shingle splitting failures like the ones illustrated earlier in this article were principally a problem of lightweight fiberglass mat based asphalt roof shingles made during the period discussed above. Changes in temperature cause the material components of the shingles to warp then split apart.

What it looks like thermal splitting looks very different from shingle cracking. Thermal splitting happens when the shingles on your roof expand and contract at quickly. Common asphalt shingle failure factors include improper storage and handling of the asphalt shingles before installation improper nailing improper flashing which pertains to any roofing material and defective asphalt shingle product material leading to thermal splitting cracking blistering staining and in some cases curling or cupping shingles. Splitting over shingle joints.