Asphalt is a common roofing material used all over America. One of the common problems with these shingles are curling, which is often attributed to wind damage. Yet, there are other causes as well.
Poor Attic Ventilation
In a well-ventilated attic, moisture is naturally carried by airflow and shouldn’t cause your home any problems. However, a poorly ventilated attic has high amounts of water vapor, which can condense water onto the roof sheathing. This can cause shingles to curl. Inadequate ventilation can also increase the temperature in the attic, which can reduce the efficiency of the sealing strips, causing shingle curling.
Defective shingles can also curl over time. Poor adhesion of bituminous coating and grit, low-quality substrate and inadequate sealing strips are examples of manufacturer defects. To avoid this issue, make sure to hire a reliable contractor who uses quality products for roof installation services.
The sealing strip is used to secure the shingles to prevent curling or lifting during high winds. Over time, shingles can curl upwards or inwards if the sealing strip isn’t lined up with the next shingle as per the manufacturer’s recommendation.
Another common reason shingles curl is improper nailing. The nails should be placed according to the manufacturer’s recommendations. The sealing strips can become ineffective if nails are driven through them. Nails can back out as a result of thermal cycling, causing the shingles to lift away from the seal and curl.
Choose Willi Roofing Services for your residential and commercial roof replacement needs. Our experienced team will help you choose the best roofing for your home and help you maintain it. We also specialize in roof and gutter repair services. Call us at (512) 504-7900, or complete our online form for a free estimate. We serve homeowners in Pflugerville, TX, and nearby areas.