Shingle Cracking vs. Splitting: What’s the Difference?

Cracked and split asphalt shingles are signs that your roof needs professional attention. So, what is the difference between asphalt shingle cracking and splitting? 

Shingle Cracking and Splitting: The Main Difference

The main difference between the two forms of damage is that a split runs through the entire asphalt shingle while a crack only affects the surface. A crease, which is normally caused by wind damage, is also considered a crack unless the damage goes through the entire shingle.

How Do Shingle Cracks Form?

Cracks occur on the surface of the shingle when it loses volatiles, which are chemicals added to the shingle to make it flexible and waterproof. This loss of volatiles is normally due to old age, moisture damage or evaporation. It then causes the shingle to shrink and form cracks. 

How Do Shingle Splits Form?

Asphalt shingles expand as temperatures soar and contract as temperatures dip. When the shingles expand, the joints beneath them become smaller. And when they contract, the joints increase in size. As time goes by, this repeated cycle of expansion and contraction weakens the adhesive strips on the shingles, resulting in diagonal splits forming on the surface of the roof.

How Do You Prevent Shingle Cracking and Splitting?

In addition to only using top-grade roofing materials, it is also important to vet the roofing contractors before letting them perform work on your roof. Only qualified contractors should handle the installation as well as the maintenance of your roof to prevent issues like cracks and splits.

Looking for an experienced roofer? LePage and Sons Roofing LLC specializes in asphalt shingle roof replacement and solar roof installation. Contact our professional team today at (508) 295-6483, or fill out our online form to schedule an appointment.