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Thread: Curious about insulating walls

  1. #1

    Smile Curious about insulating walls

    I have built a room made from my deck. I don't want it as a room only seasonal. I would like to put some foam insulation between the 2x4 'S. How do I attach rigid foam? One inch ?

  2. #2
    Moderator & Master Plumber hj's Avatar
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    Why 1" styrofoam? There are better materials and the more insulation you can install the better.

  3. #3

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    If I fully insulate it it would be considered a room by the inspectors. I only want it as a screened in porch. If I call it sa room it will raise my taxes. And I would like to know how to hold it in place, glue?
    Last edited by tomcola; 06-03-2011 at 05:25 PM. Reason: Would like a answer.

  4. #4
    Moderator & Master Plumber hj's Avatar
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    construction adhesive, but if it is a "screened room" what good will insulating the walls do? The room is going to be at the same temperature as the outdoor air. It should only be a "room" if it is closed in with doors and windows, so it could be occupied year round.

  5. #5

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    It would be considered a room. A screened in porch does have windows and doors. Without those it would be useless to call it a screened in porch!
    Last edited by tomcola; 06-04-2011 at 04:11 AM. Reason: typo

  6. #6
    Test, Don't Guess! cacher_chick's Avatar
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    There is adhesive specifically used for installing extruded foam board. It is commonly found in caulk-gun style tubes in the same isle of the store as caulk.

    Most other adhesives have solvents in them that will melt the foam board.

  7. #7
    DIYer, not in the trades LLigetfa's Avatar
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    Quote Originally Posted by tomcola View Post
    It would be considered a room. A screened in porch does have windows and doors. Without those it would be useless to call it a screened in porch!
    Around here a screened porch has only screens, not windows.

    Foam board can also be held in simply by a friction fit if cut oversized. It can also be held in place in vertical applications with pieces of lath cut long so that it bows.

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    Retired Defense Industry Engineer jadnashua's Avatar
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    Keep in mind that many foams are required to be covered with a fireproof material (typically drywall). Some of them burn quite hot and give off some noxious fumes. You don't want it just sitting there on the walls uncovered.

    And, if it truely is screened in, not sure if insulation would buy you much of anything.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  9. #9
    Moderator & Master Plumber hj's Avatar
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    quotes;I only want it as a screened in porch. A screened in porch does have windows and doors.

    It has SCREENS for windows/wall openings and SCREEN DOORS, (if necessary, not all SCREENED rooms are where you need to, or can, exit from them), for exit. You are being argumentative or do not recognize the difference between SCREENS and SOLID windows and doors. SOLID window and doors create a temperature differential between the indoors and outdoors, and insulation DOES minimize transfer between the two areas, and when necessary the MORE insulation the slower the heat transfer occurs.

  10. #10
    DIY Junior Member DanTee's Avatar
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    insulating a screened porch is just a waste of money but hey it's your money.

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