4 in x 2 ft x 4 ft Johns Manville MinWool Safing Insulation

Johns Manville MinWool® Safing is available plain or with a foil facing vapor retarder on one face. Nonorganic and moisture-resistant, MinWool Safing prevents smoke and flames from passing through openings in fire-rated assemblies. It is designed to provide a fire-rated seal when installed between the spandrel panel and floor slab in commercial curtainwall systems.

Features

• Fire-Resistant: Melting point in excess of 2000 F (1093 C). Unfaced: Flame Spread of 0 and Smoke Developed of 0
• Faced: Flame Spread of 25 or less and Smoke Developed of 5 or less
• Durable Inorganic Glass: No growth of fungi. No sustaining of vermin