Rockwool Unfaced CurtainRock 40 - All Sizes Thickness:5 in which means that it provides

which means that it provides better insulation than other traditional insulation materials

They would recommend it to others looking for a reliable insulation product

Thickness R-Value

5" x 23" x 93" 237

Rockwool Unfaced CurtainRock 40 - All Sizes Thickness:5 in which means that it providesRockwool CurtainRock is a lightweight, semi rigid stone wool insulation board designed to meet a variety of curtain wall specifications. Rockwool Safe is UL and Intertie approved as a forming material for numerous fire stop systems. Rockwool Safe together with CurtainRock 80 provides a comprehensive critical line of defense in fire protection that has been UL ULC tested and approved for perimeter fire containment. Thickness Sq Ft Pack 3" 40 4" 40 5"