CSPAN Today In Washington August 9, 2010
south facing roofs since not all the houses will be south facing i think you can retrofit an existing community more easily and more efficiently than you could ever attempt to do a single home. . host: william, washington, d.c. caller: i would like to know about insulating existing homes. where the drill holes between the joists on the outside, basically framed homes, and then they blow in insulation and they fill the hole back up, what's the deal with that? guest: can i say if you don't have an expert doing that, don't do it. but there are some good ways to do that that will save yo...
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