Which factor does NOT affect wind resistance of fasteners for asphalt shingles?

The factor that does not affect wind resistance of fasteners for asphalt shingles is the method of driving. While the way a fastener is driven into the roofing substrate can influence installation quality and the potential for damage, it does not inherently change the inherent wind resistance capabilities of the fastener itself.

Wind resistance is primarily determined by characteristics such as the type of fastener used, which can vary in material and design, the location of installation which takes into account factors like roof pitch and exposure to prevailing winds, and the size of the fastener which can influence its holding power. Each of these elements plays a critical role in determining how well the fasteners can withstand wind forces. On the other hand, the actual technique used to drive the fastener—whether it is hammered, nailed, or otherwise installed—does not provide a direct impact on its ability to resist wind once it is properly positioned and secured in place.