LP Specialty LP® FlameBlock® 1/2 x 4 x 8 Fire-Rated OSB Sheathing

LP® FlameBlock® Fire-Rated OSB Sheathing offers you the best of both worlds: impressive structural strength and remarkable burn-through fire resistance. Created by applying a patented, noncombustible Pyrotite® coating to LP® OSB panels, LP® FlameBlock® Sheathing is an ICC certified (ESR-1365), structural fire-rated sheathing with a Class A Flame Spread Rating. Lighter and stronger than gypsum wallboard, using LP® FlameBlock® Sheathing saves time and money over a structural sheathing plus gypsum approach.