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New Wall consists 7 foot Drywall and 1 foot of concrete

New Wall consists 7 foot Drywall and 1 foot of concrete

Old 12-11-13, 09:53 PM
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New Wall consists 7 foot Drywall and 1 foot of concrete

Ok Building an 17x22 2 floor Addition with a SLAB floor 6 inches below ground level to give me more ceiling room. The Concrete Foundation will extend 6 inches above ground to keep out the elements giving me a 1 Foot area of Concrete wall Starting from the Floor. The remaining 7 feet will be Sheetrock.. No Room for Shims. The Wall is 2x6 and the foundation will be flush with a 2x6 wood sill plate. So what do I use for the 1 Foot of concrete wall space. Should I glue the bottom part of the Sheetrock to the wall? Install Wonderboard to the wall Flush to the Sheetrock so I can finish it to look like one wall.?

I dont want to install 13" of Molding to cover it up.

I want the wall too look flush Floor to ceiling
any ideas?

Old 12-12-13, 06:25 AM
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You can glue the sheetrock if you like, but a minimum number of mechanical fastners will be needed to keep it from moving. You also should use moisture resistant drywall and drywall adhesive (buy more than you think, it doesn't go far). I have seen where concrete nails were used, but that was in a block wall which is fairly easy to pound into. I have successfull used sheetrock screws, but you have to be very careful. Drill a hole that is smaller than the head of the screw, don't disturb the paper around the hole, Inset a slice/sliver of wood into the hole and install your screw. Tighten only enough to pull the drywall tight so that it holds while the glue cures. Hopefully your concrete is not so tough that you can't easily drill into it.

No Room for Shims
What does this mean? Does it mean you can not use furring strips? as that was my alternate suggestion. 3/4" pressure treated furring strips that run the whole 8 foot length glued to the 2x6's and cement nailed/power shot into the concrete. May cause a little more work to need to be done around doors and windows to accommodate the additional thickness.
Old 12-12-13, 09:39 AM
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I would fur it out if at all feasible. Concrete tends to hold moisture and that isn't good for the drywall.

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