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Best method to convert 2X4 wall into 2X6


marlin's Avatar
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07-06-04, 01:58 PM   #1  
marlin
Best method to convert 2X4 wall into 2X6

I want to remove all of the plaster and lathe from my living and dining room.

From what I can tell the exterior walls are 2X4 construction with 1x6 lumber on the inside wall. This one inch lumber holds the recently blown in celulose insulation in place. I live in Northern MN, and I want to add some R-value to the walls. What are some options?

I was thinking about screwing 2X2 to the walls, without removing the one inch lumber. Then add one inch of solid foam insulation between the 2X2's.

My other question: Should I add a layer of poly, and where should I put it? Between the one inch lumber and the solid foam? Or on the outside of the solid foam?

Thanks for the help!

 
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coops28's Avatar
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07-06-04, 05:12 PM   #2  
Lets transfer this to insulation. They will be the best to answer this one.

 
Ed Imeduc's Avatar
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07-08-04, 04:37 PM   #3  
Why not just tack a foam board to the wall there and then a 4 mil poly over it .Just take and screw the dry wall to it.long screws


ED

 
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