The answer to 'why is my asphalt shingles curling shingles' is that curling or cupping of asphalt shingles is a common problem caused by a variety of factors, including improper installation, poor attic ventilation, and age. Curling shingles can lead to leaks, reduced lifespan, and an unsightly appearance.
Curling is often caused by exposure to heat and moisture over time. Poor attic ventilation can trap heat and humidity, causing the shingles to expand and contract, leading to curling. Improper installation, such as not using enough nails or not properly sealing the edges, can also contribute to curling. Additionally, as asphalt shingles age, the asphalt can dry out and become brittle, leading to curling.