Coastal and Floodplain Construction Inspector's Practice Exam

According to regulations, what is the minimum size for wood structural panels used for fastening the roof sheathing to framing?

1. 6d

2. 8d

3. 10d

4. 12d

The correct answer is: 8d

The correct answer indicates that the minimum size for wood structural panels used for fastening roof sheathing to framing is 8d (eight-penny) nails. In construction, the size of the nails is critical for ensuring proper attachment and structural integrity, especially in roof sheathing applications where materials are exposed to various environmental stresses, including wind and moisture. Using 8d nails provides sufficient holding strength and penetration, ensuring that the roof sheathing remains securely fastened to the underlying framing. This is essential for maintaining the durability and performance of the roof system over time. The specifications for nail sizes are often outlined in building codes and industry best practices, emphasizing the importance of adhering to these guidelines to perform safe and efficient construction. Nails larger than size 8d, such as 10d or 12d, could be used in different applications or structural connections where higher shear strength is required, but they exceed the minimum size necessary for fastening roof sheathing specifically. Similarly, smaller sizes like 6d do not provide adequate holding power needed in this application. Thus, 8d nails are deemed the minimum acceptable size for this purpose in regulatory standards.