What is the minimum nominal thickness of ridge boards?

The minimum nominal thickness of ridge boards is established to ensure sufficient structural integrity and support for the roof framing. A thickness of 1 inch provides adequate strength to carry the loads from the rafters that are connected to the ridge board, helping to maintain the overall stability of the roof structure.

Using a thicker board could be beneficial in some scenarios, but building codes and design practices typically dictate 1 inch as the minimum for residential construction. This thickness allows for effective nailing or connection to the rafters while providing enough rigidity to prevent sagging or failure under load. Therefore, selecting 1 inch as the minimum nominal thickness aligns with standard building practices aimed at ensuring the safety and reliability of the roof.