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-   -   Need help exposing beams and keeping warm! (http://www.diychatroom.com/f103/need-help-exposing-beams-keeping-warm-169795/)

biglurr54 01-22-2013 07:38 AM

Need help exposing beams and keeping warm!
 
I have a 1830 Post and beam house that has had all the beautiful beams covered with lath and plaster, then sheet rock over that. I plan to rip all the lath and plaster out and expose the beams in one of the rooms. I am trying to figure out how to get some insulation behind the sheet rock. The main beams are 8 inch wide but the cross members are 4 inches and are centered in the beams and I would like to have them exposed as well. I have 5 inches from where the face of the sheet rock will be to the outer sheathing. I have an unlimited supply of poly iso boards that are 4ft x 4ft and are 3 3/4 inch tapered to 3 1/4 in. They are aluminum faced. I thought about using liquid nails or another heavy duty adhesive and glue the Poly ISO to the sheet rock then cut the sheet rock/polyiso boards to fit. Do I need a vapor barrier between the poly iso and the sheet rock? How about between the poly iso and the outside sheathing?

Would I be better off buying XPS and gluing the sheet rock to that with the same process? Can I push the XPS or the poly iso against the outer sheathing or does there need to be an air space between the two?

Fix'n it 01-22-2013 09:18 PM

i would like to see pics of that.

Gary in WA 01-25-2013 05:46 PM

Where are you located?

Gary


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