What is a performance characteristic of granules in asphalt shingles?

Granules in asphalt shingles play a crucial role in enhancing the wind uplift resistance of the shingles. By covering the surface of the shingles, granules help to provide a stronger bond and improve the overall structural integrity. This increased resistance is vital in areas that experience high winds, ensuring the shingles stay securely attached to the roof. The granules also affect the shingles' aerodynamic properties, which helps reduce the risk of them being lifted by strong gusts.

While other options like color retention, weight, and insulation properties are relevant to asphalt shingles, they do not directly relate to the performance characteristic that specifically enhances wind uplift resistance. Thus, focusing on wind uplift resistance provides a clearer understanding of the functional benefits of granules in asphalt shingles, particularly in terms of durability and protection against the elements.