The roof decking would be the layer of plywood or O.S.B. nailed into the trusses or rafters. Roof decking is usually 7/sixteen” and comes in 4’x8’ sheets. For those who’re tearing off outdated roofing, the roofer can look for injury that needs to be fixed when the deck is bare. https://erickxcfil.wikilima.com/701146/5_easy_facts_about_sunridge_described