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How do you fix a moisture problem in a finished basement?
Posted by Margo MACFARLANE
Oct. 28, 2019, 10:24 a.m.
Foundation and basement improvements
1 Responses
Foundation made of CMUs (aka Cinder block foundations), are trickier to fix than poured concrete foundations. They are not nearly as strong since it is only the mortar between blocks that holds them together, so freezing can cause problems.
We’ve yet to see one that really knocked it out of the park in terms of durability and moisture management, so chances are yours has no exterior membrane, is that correct? Either way, your first step would be to check out this forum page here that already discusses the issue:
How to insulate a concrete block foundation
Granted, that cinder block foundation repair technique is for a slightly colder climate, but that just makes it a bit easier on you, and the science behind the moisture movement is the same.
Is there any efflorescence (moisture stains) on the walls? South Carolina can have a bit of a range of climate zones, so exactly which part are you in? You should also check out this page on how to prevent mold when finishing basements , that’s one of our building guide pages that will help you pick a method. Read those over and get back to us, we can for sure set you up. Sound good?