In high-wind areas, what is the maximum spacing allowed for underlayment fasteners?

In high-wind areas, the maximum spacing allowed for underlayment fasteners is 36 inches on center. This requirement is established to ensure that the underlayment is adequately secured to resist the powerful forces of wind that can cause lifting or damage. High-wind conditions necessitate stricter fastening guidelines compared to standard requirements to enhance the integrity of the roofing system.

Using 36 inches on center helps to maintain a strong bond between the underlayment and the roof deck, reducing the risk of water infiltration and improving the overall performance of the roofing materials. This distance balances the need for secure attachment while also considering installation efficiency. Adhering to such standards is critical for maintaining compliance with local building codes and ensuring the durability of the roofing system in regions prone to severe weather events.