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Heard a guy at the supply house say he never uses a moisture meter on concrete slabs, just 'the plastic sheet test' from 1972
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wesleyc757mo ago
Read a blog post that called the plastic test surprisingly reliable.
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spencerperez7mo ago
Did he ever get a false positive with that method?
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the_kai7mo ago
That old plastic sheet test... my uncle swore by it for years. He'd lay down a trash bag, duct tape the edges, and check for fog the next morning. Honestly saw him do it on a basement pour in '98 and the floor still looks fine.
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