IBS 2017: LP FlameBlock Sheathing
Coated OSB for easy flame protection.
LP’s intumescent-coated OSB sheathing is suitable for fire-rated assemblies including structures with zero setbacks and for party walls in multifamily dwellings. Unlike field applied coatings, LP’s won’t wash off and these tested assemblies don’t have the “user error” factor.
The sheathing is ICC certified (ESR-1365) to meet code, has Class A and 30-minute spread resistance, burn-through resistance, and 15-minute thermal barrier protection (UBC 26-2). It also features Exposure 1 classification and product warranty meaning it can withstand exposure to moisture during normal construction delays.