The Difference Between Cracking & Splitting on Asphalt Roofs

May 31, 2021 by Heritage Roofing

Asphalt roofing shingles are the most popular roofing material in the United States because of their cost efficiency and durability. But even the highest quality asphalt shingle roof that is religiously maintained will not be completely impervious to the elements and will get worn down or suffer damage over time and one of the most common asphalt roofing problems is cracked or split shingles. Today, roof restoration service provider Heritage Roofing explains the difference between the two.

What is Splitting?

Thermal splitting or simply splitting occurs due to the constant changes in temperature which causes your asphalt shingles to contract and expand. Asphalt roofing shingles will expand when it’s hot and shrink when it’s cold. This constant shrinking and expansion put a tremendous amount of stress on the joints between them causing them to fail.

When there is too much stress, it decreases the effectiveness of the adhesive strips causing the shingles to split. Splitting can occur in a diagonal pattern or randomly throughout your roof making it prone to leaks. If you notice that your shingles are beginning to split, be sure to call your local roofer so they can conduct a thorough inspection.

What is Cracking

Cracking, on the other hand, occurs when the volatiles contained within your asphalt shingles begin to evaporate. This happens naturally and gradually over time but constant heat from the sun can accelerate this process.

Poor ventilation in your attic can also lead to your asphalt roof shingles cracking. If the roof is fairly new and you notice that they are already starting to crack, it may be a sign that low-quality shingles were used or that your shingles were improperly installed. 

From minor roof repairs to full-on roof replacements and everything in between, when it comes to something as important as your roof, trust in only the best. Give Heritage Roofing a call at (803) 393-8703 or fill out our contact form to schedule a free appointment today.