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Question DetailsAsked on 9/23/2013

How can I eliminate a musty smell in my basement?

I am running a dehumidifier, but I still smell a musty smell in my basement that is sometimes present also on the first floor. No visible sign if any mold

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2 Answers


If you have a concrete foundation wall & floor, you may want to consider using a masonry waterproof/sealer paint to minimize any dampness from the walls/floor. Also consider air sealing/insulating the basement perimeter sill plate & band joist. Outside air infilration will affect the moisture.

Answered 7 years ago by hosey


There are several responses with ideas right below this response.

Here is also a prior one with a good laundry list of things to look for and do -

Don't forget to check not only basement,but any utility closet, crawl space, and decks - water penetrating at deck interfaces with the house, or deck beams penetrting into the house (common on cantilevered front porches) can also cause this.

Answered 7 years ago by LCD

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