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  1. #1
    Join Date
    Mar 2012
    Posts
    1

    Default attic insulation

    I have a house that is 17 years old. I have owned it for 5 years now. I was looking at the insulation in my attic. I have blown cellulose insulation. It measures between 8 and 9 inches and appears fairly settle. I do not see any areas that look wet. I am just wondering if cellulose insulation has to removed and replaced every so often.
    Last edited by jdc79b; 03-26-2012 at 01:10 AM. Reason: misspelling

  2. #2
    Join Date
    Aug 2007
    Location
    The Great White North
    Posts
    4,045

    Default Re: attic insulation

    No , as a rule there really isn't a need to replace it. The only time I've seen blown - in cellulose in need of replacement was 40+ year install that had been wet from a leaky roof over the course of 40+ years.
    In this case if the tops of the joists are exposed I would recommend just having more cellulose blown over top -- say about 4 inches.
    "" an ounce of perception -- a pound of obscure "
    - Rush

  3. #3
    Join Date
    Jun 2012
    Posts
    6

    Default Re: attic insulation

    Be careful when adding more insulation if you choose to add cellulose. Cellulose is much heavier than fiberglass. I have seen homes where to much cellulose was added and after many years of the additional weight, the ceilings have a slight bow to them

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