Building envelope insulation is designed to reduce energy costs, but rarely is it formulated to contain no ozone-depleting compounds. GAF’s EnergyGuard PolyIso Sheathing is made without CFCs or HCFCs and boasts an R-value of at least 6 per inch, the company says. It is available in 4’ by 8’ boards at ½”, ¾”, 1”, and 2” thicknesses and is suitable for cavity walls, masonry walls, stud walls, exterior stucco, re-siding, and vaulted ceilings in new construction or retrofits. gaf.com
About the Author
Jennifer Brite
Jennifer Brite is a design journalist and public-health scientist who is currently pursuing a doctorate in public health with a concentration in epidemiology and demography at the City University of New York. For ARCHITECT, she writes about new products and sustainable design.
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