Dow Thermax Sheathing 4' x 8' Polyiso (All Sizes) Thickness:1 in 1 B Cylinder

1 B Cylinder

Dedicated to deliver high-class installation characteristics you would expect from an industry leader in fiberglass insulation

CFC - and HCFC - free product and process

the other side has a dark color

Product Advantages

Dow Thermax Sheathing 4' x 8' Polyiso (All Sizes) Thickness:1 in 1 B CylinderTHERMAX Sheathing is specially designed to have a Class A fire rating and can be used in a range of concealed and exposed applications, above and below grade. Because of the improved fire performance it is best suited for hourly rated assemblies. It has nominal 1. 0 mil, smooth aluminum foil facers on both sides. THERMAX Sheathing effectively reduces condensation for exceptional moisture protection. Thickness R Value Sq Ft Board 0. 5" R3 32 1" R6 32