Richini Posted August 30, 2023 Share Posted August 30, 2023 Mid way through patio refurbishment. Previous concrete slab and channel drainage was framed in parts with 100mm DPC roll. Some sort of half hearted approach at something. Is this really necessary? Well below the houses DPC course. Link to comment Share on other sites More sharing options...
JohnMo Posted August 30, 2023 Share Posted August 30, 2023 Never heard of a DPM being required for an outdoor patio Link to comment Share on other sites More sharing options...
Richini Posted August 30, 2023 Author Share Posted August 30, 2023 Thanks. Not quite sure what it's trying to achieve Link to comment Share on other sites More sharing options...
nod Posted August 30, 2023 Share Posted August 30, 2023 I’d always put a strip under a timber sil But not bother on anything else Link to comment Share on other sites More sharing options...
Richini Posted August 30, 2023 Author Share Posted August 30, 2023 Thanks for your reply. The DPC has been put in between house brickwork and concrete slab pathway. Link to comment Share on other sites More sharing options...
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