08 Jul '11, 8am

Let's be really clear here: Paint can't insulate!

Engineer Curt Freedman ended up testifying for the defendant — that is, the HVAC contractor. To demonstrate that Super Therm is ineffective at slowing heat flow, Curt Freedman brought a modified beer cooler to court. The cooler included a 50-watt heater and a computer fan to maintain an evenly distributed temperature. “He had cut out a window in the foam box,” Harley recalled. “He had plugged the window with a film of dried paint. He peeled the dried paint off a paint roller tray. He didn’t try to make a quantitative measurement of the R-value of the paint. He just pointed an infrared scanner at the box and showed the difference in temperature between the outside of the insulated box and the window covered with dried paint film. It wasn’t an ASTM American Society for Testing and Materials. Not-for-profit international standards organization that provides a forum for the de...

Full article: http://www.greenbuildingadvisor.com/blogs/dept/musings/in...

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