Insulation & Air Sealing

Dow Styrofoam SIS

The innovative Styrofoam SIS Brand Structural Insulated Sheathing from Dow combines three functions in one product: Structural lateral bracing and transverse loads, significant insulation performance and a water-resistive barrier. It offers a high R-value (R-3.0 at 0.5 in.; R-5.5 at 1in.), reduced energy consumption, which in turn reduces greenhouse gas emissions, resistance to moisture intrusion and air infiltration, reduced installation time, labor and material; and eliminates the need for wood structural panels and housewrap.
March 29, 2011
670c37cb9688042bc38236b1 Dow

The innovative Styrofoam SIS Brand Structural Insulated Sheathing from Dow combines three functions in one product: Structural lateral bracing and transverse loads, significant insulation performance and a water-resistive barrier. It offers a high R-value (R-3.0 at 0.5 in.; R-5.5 at 1in.), reduced energy consumption, which in turn reduces greenhouse gas emissions, resistance to moisture intrusion and air infiltration, reduced installation time, labor and material; and eliminates the need for wood structural panels and housewrap.