Many people think that cracking and thermal splitting of asphalt shingles are the same, but they aren’t. Cracks appear at the surface of the asphalt layer while thermal splits go through the entire shingle panel. These two roofing problems, however, can affect the integrity of your roof, its energy efficiency and weather resistance.
AnyWeather Roofing, a roof repair contractor in the area, explains how thermal splitting occurs in today’s post.
Your asphalt shingle roofing system consists of two separate structures. The first assembly is known as the roof deck. It contains a roof sheathing attached to the framing members, such as the rafters, roof trusses, ridges and blocking. The second assembly, on the other hand, is formed by shingles bonded using adhesive strips. These two roof structures have different functions and have materials that expand and contract at a different rate from each other.
As the roof sheathing expands and contracts, it stretches the shingles and compresses them. This creates stresses between the two assemblies, which may cause splitting or buckling of roofing shingles. Get in touch with your GAF Master Elite® roofing services provider when you notice shingle splits.
How Thermal Splitting Occurs
What causes thermal splitting? This roofing problem is a result of temperature-related expansion and contraction. This often occurs where the roof shingles connect the joints in the underlying shingle layer. It may also create a diagonal pattern up the roof.
Splitting above the underlying shingle, however, happens more often with fiberglass shingles than with organic asphalt shingles. This is due to a stronger adhesive bond of fiberglass shingles than their organic counterpart.
As a GAF Master Elite contractor, we provide high-quality products and services to maintain your home’s integrity, energy efficiency and curb appeal. Call us today at (859) 286-6400 if you are in Northern Kentucky, at (513) 906-6009 if you are in Cincinnati, OH, or at (937) 956-0200 if you are in Dayton, OH. You may also fill out our online form for an estimate.