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damp proof membrane
- Thread starter paulpa
- Start date
R
RedHerring2
You need a polythene sheet over the insulation. it doesn't need to be a proper dpm. It's just to stop the screed losing too much moisture into/ between the insulation.
You could tape the joints, but a) some BCOs prefer polythene sheet, and b) polythene sheet is easier, quicker and more secure.
You could tape the joints, but a) some BCOs prefer polythene sheet, and b) polythene sheet is easier, quicker and more secure.
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