Latest Discussions : Basement & Foundation

herb13

06:40PM | 11/14/02
Member Since: 11/13/02
2 lifetime posts
I'm framing basement walls with top/bottom plates and 2x4 studs:

1)Since the poured concrete walls are not plumb there will be some gaps between the concrete walls and the studs--say around a half inch. These gaps would allow the stud bays to "communicate" with each other in the event of a fire. Do these gaps need to be plugged? If so, what should I use?

2)On one wall the concrete wall ends at about 3 feet high once it rises above grade. The sole plate and house framing on this wall are inset about 3 inches from the interior concrete wall (in other words, the existing sole plate and studs are about three inches narrower than the concrete wall). I want the interior basement walls to be straight (and not "stepped out" at the 3 foot height). This means that there will be about a three inch gap between the new studs and the exiting studs from the 3 foot height to the ceiling. Does a gap of this size need to be plugged so the stud bays don't "communicate"? Could I just attach 1/4 inch plywood to the studs or what?

Thanks!

BobF

02:56PM | 11/18/02
Member Since: 10/19/98
223 lifetime posts
No need to "plug the gaps". I would, however, insulate. Insulating the basement walls has one of the highest paybacks of any energy project. Insulating my walls paid for itself in the first two winters (I live in the midwest, winter daytime highs anywhere from 0 - mid 30's. Lows usually in the teens).

herb13

03:23AM | 11/19/02
Member Since: 11/13/02
2 lifetime posts
Thanks very much, Bob. I appreciate your inputs.

stpat

02:58PM | 11/19/02
Member Since: 11/16/02
23 lifetime posts
Be sure to keep the drywall at least 1/2" from floor to prevent mold.


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