A net-zero energy house produces as much renewable energy as the house and its occupants use. It is a concept that was almost unthinkable just a few years ago. More
The company’s new LD-R-50 spray-foam insulation has earned the U.S. Department of Agriculture’s BioPreferred status for use of rapidly renewable materials. The insulation is made using castor oil, a natural product that is extracted from the castor plant. The product is water-blown and free of HFCs and PBDEs. 800.758.7325. More
Products from Whirlpool, Everpure, Icynene, James Hardie, Vantage, and Nana Wall. More
Icynene water-blown foam insulation expands to 100 times its volume to fill cracks and crevices and minimize air leakage. It carries an R-value of 3.6 per inch. The product also is available in a pour-fill variation that expands upward to 60 times its original volume; it will not expand outward and damage the wall. The pour-fill version has an R-value of 4 per inch. 800.758.7325. More
When builder Mike Scarlett signed on to participate in the HBA of Greater Dallas Green Built Parade of Homes, which debuted in September, he had never so much as built an Energy Star house. But he rose to the challenge, hiring a consultant to help him decode such eco-measures as spray-foam insulation, dual-flush toilets, and the use of recycled materials. Scarlett, owner of Scarlett Custom Homes in Frisco, Texas, was one of seven builders who showcased Parade homes that feature key building techniques from the Green Built North Texas program. The new certification program, scheduled for rollout in early 2008, is a regional adaptation of NAHB’s Model Green Home Building Guidelines and requires builders to implement a minimum of 38 components from six categories, ranging from energy and water efficiency to recycling and indoor air quality. More
Most builders know by now that as homes have gotten tighter, indoor air quality has declined. Brian McElroy is proving you can have it both ways. More
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