As asphalt shingles age and lose volatiles, their wind resistance is affected how?

As asphalt shingles age, they undergo changes in their composition, primarily losing volatile components that help maintain their flexibility and adhesion properties. As a result of this aging process, the shingles become more brittle and less able to withstand wind forces. The loss of these volatiles decreases the material's overall integrity and robustness, reducing its wind resistance. When subjected to strong gusts or sustained winds, aging shingles may be more prone to lifting or even tearing away from the roof deck. This deterioration directly correlates with decreased wind resistance, making it critical for homeowners and inspectors to monitor the condition of asphalt shingles over time to ensure effective protection against the elements.