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Building EnvelopeAir Sealing A clear, comprehensive guide to Air Sealing Best Practices produced by the US Department of Energy. EERE Guide to Whole House Energy Efficiency Complete, comprehensive guide to best practices in all areas of the home: from installing windows and doors, to weatherstripping, to appliances and tubs. Insulation Written by Building Green, a very credible source on green building products and practices, this article introduces readers to the breadth of insulation materials available to them, and their relative differences in environmental impacts. From this article, we learned that XPS has a relatively higher environmental impact than EPS due to the use of HCFCs in the manufacturing of XPS. EPS is HCFC-free, and although it does require a high amount of pentane (a smog-creating gas) as it's blowing agent, the manufacturing plant is able to recaputure most of the pentane, prohibiting it from entering the atmosphere. ACH Foam Technologies in Denver is our primary source for EPS as insulative sheathing, including below-grade appliactions. Click here to download a brochure on the environmental benefits to using EPS.
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