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Insulation and Cover Boards

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.

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