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STYROFOAM SIS™ Structural Insulated Sheathing from Dow combines a structural layer, a moisture barrier, and foam insulation, providing an R-value of 3 at 0.5-inches thick, or 5.5 at 1-inch thick. At one-third the weight of OSB, it’s easier to handle and quicker to install. STYROFOAM SIS Structural Insulated Sheathing is made up of 80-percent post-consumer recycled content by weight, and is ENERGY STAR qualified.

Manufacturer: Dow Building Solutions
Web Site:

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