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Old 07-06-2011, 09:03 PM   #1
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Moisture barrier

hi i recently bought a house with a tarmac floor the room should have floating timber floor with vents but some dope decided to install tarmac "the smell is awfull i have removed the floor and am down to dirt i was going to install a concrete floor then build walls on it and then timbers on the walls .

my question is should i use a moisture barrier under the concrete slab i vapour barrier concidering it is between the walls and the moisture would have nowhere to go or should i just pour concrete and let the moisture come through concrete and then get carried away by air vents under timber floor thanks.


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Old 07-06-2011, 11:50 PM   #2
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Put a 6 mil minimum vapor barrier beneath the concrete slab.


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