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  1. #1

    Default insulating replacement windows

    Is expanding spray-foam the best product to use around new replacement windows prior to installing interior stops?

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

    Default Re: insulating replacement windows

    It's much better than stuffing fiberglass insulation which doesn't work well in that situation.

    The foam does 2 main things :

    1- insulates

    2- seals drafts

    In some cases it will have slight advantage as an adhesive.

    Just have to watch for which expansion rate is used ... too much of high expanding foam will push in the frames.

    Cheers.

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