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Insulate over basement efflorescence?
Hi all,
I'm getting really to insulate and drywall a portion of my basement in an older (1950's) house. The basement foundation is cinder block, that looks like it has been covered with some kind of a tar-like sealer, and then plastered. I have been monitoring the walls for the last 8 months and there are no water issues. I do however have some moderate efflorescence on one of the four walls. This wall is adjacent to the driveway beside my house. Some of the driveway stones do need to be reseated to properly grade away from the house, and this is on my list of stuff to do this summer. That should reduce the efflorescence but probably not eliminate it. Because I dont have access to the raw foundation wall, a sealer like Drylok is not really an option. Nevertheless, I plan to coat the surface with an efflorescence-fighting coating anyways. Of course, these kinds of treatments only work for a limited time (5 years). Anyways, bottom line - can I proceed with insulating over this? I was thinking of using a closed cell spray foam insulation. Would that be recommended for this situation? Thanks! |
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