Nailboard™
Johns Manville Nailboard™ is a rigid roof insulation board composed of a closed cell polyisocyanurate foam core bonded in the foaming process to either 7/16” (11 mm) or 5/8” (16 mm) oriented strand board (OSB) on one side and a universal fiber glass reinforced facer on the other. Nailboard meets the physical property requirements of ASTM C 1289 and Federal Specification HH-I-1972/Gen and HH-I-1972/2.
