Product: InsulFoam HD Composite

Courtesy InsulFoam

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InsulFoam’s HD Composite insulation board bonds closed-cell, expanded polystyrene (EPS) foam together with a 1/2″ thick, high-density polyisocyanurate cover board. Available in 4′-by-8′ sheets, the insulation board comes in thicknesses between 1.5″ and 7″ and provides R-values from 6.4 to 25. It can be used with single-ply-membrane, built-up, and modified-bitumen roof systems or as an underlayment for metal roofing systems. HD Composite’s 100% recyclable, HCFC- and formaldehyde-free foam has a compressive strength ranging from 10 to 60 psi and weighs 1 to 3 pcf. • insulfoam.com

Note: The image has been updated since first publication to show the correct InsulFoam product.

About the Author

Wanda Lau

Wanda Lau, LEED AP, is the former executive editor of ARCHITECT magazine. Along with 10 years of experience in architecture, engineering, and construction management, she holds a B.S. in civil engineering from Michigan State University, an S.M. in building technology from MIT, and an M.A. in journalism from Syracuse University's Newhouse School. Her work appears in several journals, books, and magazines, including Men's Health, ASID Icon, and University Business. Follow her on Twitter.

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