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by mecconsultancy
Sat Jun 06, 2009 2:01 pm
Forum: Builders and Builders Merchants Forum
Topic: Under floor Methane gas membrane
Replies: 3
Views: 6195

Hi, The gas membrane should be laid horizontally under the extent of the slab i.e. how you would fit a carpet in a room. You should then use a gas resistant dpc which should be laid across the cavity and brought down the inner leaf of the block/brickwork. This is then taped to the gas membrane. Stan...
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