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  1. #1
    Join Date
    Mar 2014
    Posts
    3

    Default 3season room flooring

    I'm building a 3 season rm on existing deck-using current 5/4 pressure treated flooring-Intend to put down 1/2'plywood subfloor for pergo floor .What the best product to use between plywood and deck boards?to keep moisture out-room will have windows.under deck boards-not between deck boards and plywood
    Last edited by terrence c; 05-07-2014 at 05:46 PM. Reason: wrong terms

  2. #2
    Join Date
    Jul 2010
    Location
    SoCal
    Posts
    6,537

    Default Re: 3season room flooring

    Roofing felt.

  3. #3
    Join Date
    Aug 2007
    Location
    Portland, Oregon, formerly of Chicago
    Posts
    1,778

    Default Re: 3season room flooring

    If I am not mistaken, Pergo requires a foam backing which is its own vapor barrier? Would a felt layer under the plywood still be advisable?

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