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Read All Questions & Answerscan this be used under a covered porch
3
It depends on how damp the location is. There are better materials that are Portland cement based.
Was this Answer Helpful ?You could get by using it under a porch yes, as long as it does not get wet constantly.
Was this Answer Helpful ?This is the only type of joint compound for exterior ceiling/soffit use (not recommended for exterior walls).
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