I am very interested in some best practices regarding basement framing. I want to add a shop in my basement. 15 year old house with cement block basement walls. I am thinking of using 2X4’s to fur out the walls. Typical framing. Stand alone. Fastened top and bottom with a treated bottom plate. My real question is : What about vapor barriers and insulation. BTW- Climate is northeast Ohio
What do ya think? Thanks to all! Mike L.
Replies
Best is to glue 2" EPS foam ( that is the blue of pink panels) directly to the concrete, then add strapping/furring over that, so with strapping and foam, you are 2-3/4" of space lost. With a framed 2x4 wall, you lose 3-1/2" plus space to crete of another half inch or so.
For glue, you best bet is spray foam in cans. Buy a gun to dispense it instead of throw away cans. It will pay for itself on a job this size. spray some beads on the wall, slap the panel in place, position it, and prop to hold in place for 20 minutes.
To add the furring use tapcons or shoot through. Some guys use steel channel studding instead.
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rooferman
I like to do what Piffin described. I usually don't glue the panels. I just friction fit them and then follow up with 3/4 strapping.
Problem is finding tapcons that are long enough. Finding the hole thru 2" of foam and having to use those shallow outlet boxes.
For our outlets we used a J-box in the ceiling and ran one individual wire down to each box.
Last time we did it it was into brick. Our screws needed to be deeper than to get a hold. We countersunk the holes and used a hex drive tapcon.
Rich
Edited 11/16/2008 9:41 am ET by cargin
Not sure what you meant about finding the holes. I drill the hole, then screw the Tapcon in. Use a hammer drill and Bosch bits.
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Piffin
I drill the hole, then screw the Tapcon in. Use a hammer drill and Bosch bits.
Same here.
From my experience the screw tends to wander when going thru the styofoam.
Maybe the heat from drilling opens the back side of the hole alittle bit.
You don't have to be off by much to miss the hole.
Last couple of times we did this I did the styofoam fitting and my son Levi followed up with the 1x3s. He has a lazy eye so he doesn't have the same depth perception as I do. As a result of using only one eye I have noticed that he doesn't always hold the cordless and the screw straight. But I have missed the hole also.
Rich
Edited 11/16/2008 10:55 am ET by cargin
minor inconvenience.I think I don't notice it much because I have some good body memnomics. for instance, if I do two plies of sheetrock or something, I will consistently hit the previous screw 9/10 times.
So when I drill the hole, and immediately screw in, my body is remembering the angle and position of elbow driving in. I don't even think about it, but I know it is not natural for everyone. I've had helpers who couldn't drive a 90° hole or even close to it if their lives depended on it.
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Same here, I recently had to add a sill extension on a window that would be wrapped w/copper. I added a rip of 1.5" x1.5" at 7 degrees and glued and screwed it on.
A few WEEKS later I was doing the copper and wanted to rivet the front lip, dammed if I didn't hit the previous screw I had put in, first shot!Spheramid Enterprises Architectural Woodworks
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