According to a recent press release by EPA's Energy Star arm—in 2003, ENERGY STAR helped Americans save enough energy to power 20 million homes, reducing emissions equivalent to that of 18 million cars..
Insulating sheathings like XPS not only add significant R-value to wall systems, they also reduce air leakage.
XPS is manufactured from polystyrene resin, a thermoplastic material, which can be melted and re-inserted into the manufacturing process to produce new XPS insulation - creating virtually no ‘scrap’ or waste material.
The International Code Council (ICC) Building Code and the ASCE 32-01 Standard recognize that XPS performs better than EPS in below-ground applications.
The Extruded Polystyrene Foam Association (XPSA) is a trade association representing manufacturers of Extruded Polystyrene Foam (XPS) insulation products and the industry's raw material suppliers. XPSA members collectively manufacture more than 95% of all XPS destined for use in the North American market. XPSA promotes the benefits that accrue to society from appropriate use of XPS foam insulation applications.
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