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View Diary: Solar Jobs Stimulus: 7 Million Homes Get PV Panel Rooftops (Cover Washington D.C. with Solar PV!) (81 comments)

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  •  apples and oranges (3+ / 0-)
    Recommended by:
    DaleA, Roger Fox, radical simplicity

    I have no reason to doubt your numbers are correct for the situations you cited.  However, I have added insulation to structures on several occasions and in no case was gutting the walls and the other extensive work you cite necessary.  For another example, on one old house I owned with hollow walls a licensed contractor blew in insulation for around $1000.

    Scientific Materialism debunked here

    by wilderness voice on Mon Sep 12, 2011 at 02:42:59 PM PDT

    [ Parent ]

    •  IT doesnt settle? (0+ / 0-)

      That was a problem back in the day, new product is supposed to be much better. Was it a dry product or an expanding foam product?

      FDR 9-23-33, "If we cannot do this one way, we will do it another way. But do it we will.

      by Roger Fox on Mon Sep 12, 2011 at 06:21:13 PM PDT

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      •  No. They dense-pack it (2+ / 0-)
        Recommended by:
        Roger Fox, KenBee

        They generally use high pressure to pack the fill very tightly within the walls. Most is made of some kind of fiber (cellulose, shredded old blue jeans, etc.) with a flame retardant.

        Foam is used almost exclusively for exposed interior walls and ceilings (for example, in basements).

        •  Yeah, I've seen earlier cellulose efforts, (0+ / 0-)

          huge settling, but the high pressure install is supposed to solve that issue.

          FDR 9-23-33, "If we cannot do this one way, we will do it another way. But do it we will.

          by Roger Fox on Mon Sep 12, 2011 at 08:07:10 PM PDT

          [ Parent ]

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