Energy audits are usually performed with thermographic cameras and blower tests, but Alex Wilson of BuildingGreen.com describes what I would call the Yogi Berra Energy Audit: “You can observe a lot by just watching.” The principle is pretty simple: the less insulation in a house attic or at the rafters, the more heat escapes through the roof. That escaping heat melts the snow. As I’m driving into town, if I see that most of the nearly two feet of snow we received is still sitting there and the depth ev… Read the full story on TreeHugger
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Jargon Watch: "Drive-by Energy Audit"