JM 4 CURTAINWALL 80 8# | SAFB4.0-CW8-24-JM

Johns Manville's R-16 MinWool® Unfaced Curtainwall 80 Mineral Wool Insulation 24 in. x 48 in. x 4 in. also provides excellent sound attenuation and moisture resistance, supporting long-term durability in demanding building envelopes. Manufactured from inorganic fibers, it resists mold growth and maintains dimensional stability under temperature fluctuations. Its rigid board structure allows for clean fabrication and secure friction-fit installation, making it a dependable choice for architects, contractors, and specifiers seeking code-compliant mineral wool insulation for commercial exterior wall applications.

• Made of inorganic fibers derived from basalt, a volcanic rock, with a thermosetting resin binder
• Density: 8 PCF
• High-fiber density and low shot content ensures strong performance in high-temperature thermal control and fire resistance applications
• Low smoke and flame spread when tested in accordance with ASTM E84, UL 723, CAN/ULC S102
• Mold resistant and does not support growth of fungi