05:31AM | 03/21/02
Member Since: 03/11/02
6 lifetime posts
I would like to frame and insulate the basement wall that runs along my basement stairs. Due to space and structural constraints I am unable to use 2x4 framing. To add to the complexity, the foundation walls were poured using planks and there are a few "wows" that take away more framing space (90+ year old house). Can I use 2x2 wooden framing and batt style pink insulation(fitted into/around the "wows") and get any insulating value due the compression? I should also note that before the framing goes up I am repairing the spalling, and adding a waterproof coating to the walls.


09:37AM | 03/21/02
You can use the fiberglass insulation in a 2x2 wall but do not attempt to squeeze 4” insulation in a 2” space. You may have to carefully split the 4” insulation into 2 pieces that are about 2” thick, then install it. If you try to compress the 4” into a 2” wall you will loose the insulation value and it would put pressure against the wallboard. If you split the insulation in half you will get approx. R-6 insulation value.

If you can find an insulator in your area that does spray on foam insulation you will get a much better insulation value and a better overall job. The foam can be sprayed onto your wall between the 2x2s and then cut off flush with the front of the framing. You would then apply your wallboard over the cured foam. It will cost more initially but the end result would be much more satisfactory.

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