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  1. #1
    Join Date
    Feb 2008
    Posts
    14

    Question can i add insulation to exterior walls?

    I believe the exterior walls of my cape have R9 fiberblass insulation. When I replaced my bath tub I removed the old, thin insulation behind it and thought I could read R9 on it but it was very difficult due to the age. I replaced it with R13 as necessary. My next project I plan to remove the exterior shingles and reside the house. And I thought it would be a good time to blow insulation in before I re-side. My question is can i blow in insulation even if fiberglass insulation already exists?
    thanks

  2. #2
    Join Date
    Dec 2007
    Location
    MN
    Posts
    455

    Default Re: can i add insulation to exterior walls?

    I guess the short answer is Yes.

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