hello all. when layin the dpm below the concrete for a floor slab on an extension i have come up with a slight query. the height of the concrete comes up higher than the original damp proof course on the exterior of the house. this means the dpm cant tie in with that of the houses' dpc unless it is folded back down which seems strange. can anyone suggest the correct method for this situation, many thanks
laying dpm
- Thread starter richjacq
- Start date
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Well, in the absence of anything better...
When your outside extension walls are tied in to the house, a dpc will/should be laid to bridge across and stop any damp between the two tracking or rising. Your concrete base inside the extension will be self-contained within a very large sheet of Visqeen, tied into the dpc of the brickwork.
I don't see a problem if this is the case. What's it say on the plans?
However, your BC officer may have a problem.
I've said before, they're very friendly, and are only too willing to give advice if asked nicely.
That's my experience, anyway.
When your outside extension walls are tied in to the house, a dpc will/should be laid to bridge across and stop any damp between the two tracking or rising. Your concrete base inside the extension will be self-contained within a very large sheet of Visqeen, tied into the dpc of the brickwork.
I don't see a problem if this is the case. What's it say on the plans?
However, your BC officer may have a problem.
I've said before, they're very friendly, and are only too willing to give advice if asked nicely.
That's my experience, anyway.
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