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  1. #1
    Join Date
    Mar 2007
    Location
    Oklahoma City
    Posts
    356

    Default Spray foam question

    Why would they have a sprayed foam roof deck and still have blown in insulation in the ceilings and batts on the walls? The ducts were in the attic space. What issues would this cause other than the attic temp not equalizing with the interior temps as much? They also have a Cat 1 furnace with combustion ducts into the sealed attic. Big attic so I believe that would be ok, but have not ever seen it done this way.

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  2. #2
    Join Date
    Mar 2007
    Location
    Orlando, FL
    Posts
    1,292

    Default Re: Spray foam question

    Probably a retrofit install and didn't remove the existing insulation.

    If there is no existing vapor barrier, it shouldn't be a problem.

    Is that vertical sidewall an exterior or partition wall?

    Dom.


  3. #3
    Join Date
    Mar 2007
    Location
    Oklahoma City
    Posts
    356

    Default Re: Spray foam question

    Quote Originally Posted by Dom D'Agostino View Post
    Probably a retrofit install and didn't remove the existing insulation.

    If there is no existing vapor barrier, it shouldn't be a problem.

    Is that vertical sidewall an exterior or partition wall?

    Dom.
    It was a partition wall so it likely needs to be removed so that there is no vapor barrier.

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