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Insulation to Keep Us Warm—Not Warm the Planet

by LiveModern Webmaster last modified Aug 23, 2012 04:47 PM
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by Alex Wilson last modified Aug 22, 2012

Author name:  Alex Wilson Blog Category:  Energy Solutions GreenSpec Insights An update on getting the global warming potential ( GWP ) out of insulation materials. Today's closed-cell SPF has a global warming potential of 1,430, but if producers adopt new HFO blowing agents, it will drop to close to zero. Click to enlarge. Photo Credit: John Straube I’ve been pretty vocal about a big problem with some of our most common insulation materials: that they are made using blowing agents that are highly potent greenhouse gases. Extruded polystyrene (XPS) and closed-cell spray polyurethane foam (SPF) are made with HFC (hydrofluorocarbon) blowing agents that have global warming potentials (GWPs) many hundreds of times greater than that of carbon dioxide. (My apologies for contaminating this column with so many acronyms!) Insulation: good news, bad news read more






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