What is the minimum side lap required between joints in courses for wood roof shingles?

The minimum side lap required between joints in courses for wood roof shingles is typically set at 1 1/2 inches. This requirement is critical for ensuring the proper performance of wood shingles, as adequate side laps help prevent water infiltration and provide stability to the roofing system. The specific measurement of 1 1/2 inches allows for sufficient overlap, which helps channel water away from the seams and reduces the likelihood of leaks.

The designated side lap measurement not only contributes to the longevity of the roofing material but also plays a vital role in overall roof performance under various weather conditions. Proper installation techniques that meet this minimum side lap requirement are essential for maintaining the integrity of the roof and ensuring compliance with industry standards.