What does the NRCA recommend when installing an asphalt shingle roof in high-wind regions?

The National Roofing Contractors Association (NRCA) recommends a minimum of 6 nails per shingle when installing an asphalt shingle roof in high-wind regions. This guideline is designed to ensure that the shingles remain securely attached to the roof deck, providing enhanced resistance to wind uplift. In areas prone to severe weather conditions, such as high winds, increasing the number of fasteners per shingle is crucial for the overall integrity and longevity of the roofing system.

Using 6 nails per shingle allows for better anchoring and helps prevent the shingles from being lifted by strong winds, which can lead to shingle failure and potential roof leaks. The NRCA's recommendation is based on extensive research and best practices in the roofing industry, tailored specifically for locations where wind events are common.

The other options suggest higher nail counts, which might be perceived as even more secure, but 6 nails per shingle strikes a balanced approach between effective wind resistance and practical installation. Additionally, using fewer than 6 nails would not meet the NRCA's recommended standards and could compromise the roof's ability to withstand high-wind conditions.