Blue jean insulation
Here's a look at Team Arizona's Solar Energy-Efficient Dwelling, a building that's meant to be modular and be very efficient with water. On the ground during the construction on Wednesday one could see the cotton insulation, usually made from recycled blue jeans, that the Arizona team uses. Although it's not one of the contest criteria, some teams have chosen materials thoughtfully, by choosing locally sourced material or, as the Ohio and Illinois teams did, by recycling wood from old barns.
October 7, 2009 4:47 PM PDT
Photo by: Martin LaMonica
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