What is the minimum nominal thickness required for wood plank roof decks?

The minimum nominal thickness required for wood plank roof decks is 1 1/8 inches. This specification is established in building codes to ensure that the roof deck has sufficient strength and durability to support loads such as snow, wind, and the weight of other construction materials. A thickness of 1 1/8 inches provides an adequate balance between structural integrity and material use, ensuring that the roof system can perform effectively under normal and extreme conditions.

Additionally, proper thickness is critical for achieving proper fastener anchoring and facilitating the overall installation process. Thinner materials could compromise the stability and performance of the roof structure, leading to potential issues such as sagging, warping, or even failure under load. Therefore, adherence to the minimum thickness of 1 1/8 inches is essential for the safety and reliability of wood plank roof decks.