gtblum Posted January 4, 2010 Report Share Posted January 4, 2010 How long does fiberglass insulation last before it is no longer doing it's job? The right side of my house has a vaulted ceiling with new insulation and rock. The left side still has an upper bedroom with the original fiberglass and rock. Looks to me like gravity wins again. Thought I'd get away with a fresh paint job in that room. Who says you can't learn much about a house with a snow covered roof? Click to Enlarge 66.54 KB Click to Enlarge 45.27 KB Quote Link to comment Share on other sites More sharing options...
Inspector37620 Posted January 4, 2010 Report Share Posted January 4, 2010 I have a bad habit of looking at roofs after a snow or heavy frost as I drive down the road, can sure tell which ones are insulated and vented well. And which are not. The more I read about foam the better it sounds to me, still figuring out how to handle any moisture issues properly with foam though. Quote Link to comment Share on other sites More sharing options...
Marc Posted January 4, 2010 Report Share Posted January 4, 2010 I never could understand why closed cell foam was not a good choice for insulating dwellings. It insulates very well and also does not absorb or transmit moisture so why is it not an excellent choice? Marc Quote Link to comment Share on other sites More sharing options...
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