Blog
Here’s Why Your Asphalt Shingles Curl

Here’s Why Your Asphalt Shingles Curl

Asphalt shingle curling is often linked to wind damage because it’s typically discovered after an inspection following a weather event. However, curling can occur for various reasons other than wind damage.

In today’s post, your trusted general contractor, 3JM Exteriors, Inc., discusses reasons asphalt shingles curl. 

Faulty Installation

Improper sealing strip installation can cause the shingle tabs to not adhere and curl upward or inward over time. Nails that aren’t placed according to the manufacturer’s recommendation can affect the efficacy of the sealing strip. Thermal cycling or temperature changes can cause the nails to back out, which can lead to shingles separating from the seal. Insufficient nailing can also result in shingle curling. 

Insufficient Attic Ventilation 

In a well-ventilated attic, moisture is carried out of the house through the air. There is more water vapor in poorly ventilated attics, which can end up on the roof sheathing. Shingle curling can develop as moisture infiltrates the sheathing. 

65 percent of homes in the U.S. are insufficiently insulated. Your local roof and siding repair expert, 3JM Exteriors, Inc., offers blow-in insulation that can save you 20 to 40 percent on energy costs. We use Owens Corning Attic-Cat Blow-In Insulation because it’s quick to install, performs excellently, energy-efficient and eco-friendly. 

Manufacturer’s Defect

Poor adhesion of bituminous coating and grit, low-quality substrate, inadequate sealing strips and faster wearing rates, are all considered manufacturer’s defects. Make sure to hire a reliable roofing contractor who uses high-quality products from reputable manufacturers. 

For superior roofing services, choose 3JM Exteriors, Inc. We specialize in window replacement, gutter installation, commercial roofing and more. Our team can take care of all your roofing needs, from inspection to construction and clean up. Call us at (630) 882-2422 or fill in our online form for a free estimate. We work with homeowners in Naperville, IL.