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. Roofing company The Thomas Roofing Company shares an in-depth look at thermal splitting and how it can be prevented.
What Is Thermal Splitting?
Most objects expand and contract at varying rates when exposed to temperature extremes. In terms of home components, the more varied a particular area’s climate , the more extreme the expansion and contraction rates will be, as well. Asphalt shingles are subject to the same expansion and contraction, as roofing systems are exposed to the elements all year round.
Roofing systems are built with layers of different materials with different expansion and contraction rates. These layers can be grouped into two: the roof deck with the roofing felts or underlayment, and the outer roofing material – the shingles. These two groups are attached to each other, yet expand and contract differently. If not accounted for during installation, this can create stress points that can pull shingles apart, resulting in thermal splitting.
How to Prevent Thermal Splitting
There are two things that can help prevent thermal splitting: a quality roofing system and proper installation procedures. It’s critical to hire an experienced roofing contractor who knows how to account for expansion and contraction, especially when installing a roof onto a home that you plan on staying in long-term. Proper installation begins with properly spaced decking material. The small gaps between boards allow for thermal expansion, preventing the boards from exerting pressure onto each other as they expand.
What’s equally important is choosing quality roofing material that’s made by a trusted roofing manufacturer. The Thomas Roofing Company offers our clients the GAF Lifetime Roofing System, as GAF produces roofing products with consistently high quality, strong warranties and long-term performance. When installed properly, shingles damaged by thermal splitting will be the last thing you have to worry about when you go with GAF.
To learn more about our services as a roofing contractor, call The Thomas Roofing Company today at (410) 692-8998. You can also fill out our contact form to schedule a free no-obligation quote. We serve many areas in Columbia, Towson, and Westminster, MD.