Learning Center: roof decking

If you're researching roof replacement or repairs, you've likely encountered the terms "roof decking" and "roof sheathing" being used by different contractors. This terminology confusion leaves many homeowners wondering if these are different components or the same thing.

Roof decking (also called roof sheathing) is the foundational layer that creates a solid base for your entire roofing system. Installed directly atop the roof's structural supports (trusses or rafters), it forms the crucial substrate to which all other roofing materials attach.