What is the most appropriate method for attaching wood roofing to the substrate?

Using a minimum of two fasteners for shake or shingle roofing is the most appropriate method for attaching wood roofing to the substrate. This method ensures that each piece of wood is securely anchored, providing better resistance to wind uplift and reducing the likelihood of the materials becoming loose or damaged over time.

The use of two fasteners helps to distribute the load evenly across the roofing material, which is essential for maintaining the integrity and longevity of the roofing system. This dual-fastening technique also allows for expansion and contraction of the wood due to temperature changes, minimizing the risk of cracking or splitting.

In contrast, relying on a single fastener would not provide enough support, increasing the risk of material failure. Using adhesive alone does not offer the mechanical strength required for roofing, especially in areas prone to high winds. Similarly, attaching four fasteners per piece may lead to unnecessary complexity and increased costs without providing proportional benefits compared to the standard two-fastener method. Therefore, two fasteners strike a practical balance between security and efficiency in wood roofing installation.