Did an estimate for a solid wood floor this week, the house is built late 60s and a large part of it has the black vinyl tile adhesive on the floor. I thought this may mean there is no Dpm but they have a solid oak floor in the lounge that was installed direct to the concrete (no black adhesive in there) that's fine. Does this mean there must be some sort of bitumen Dpm in or under the screed? Could a solid wood floor be ok on a slab which had no Dpm? Customer asked me how did they stop rising damp before the Dpm sheet was used and it made me think ( that hurt ) . apparently some of the screeds had a cold or hot bitumen in or under them. But others are direct to earth, brick, rubble what ever.
I think it was 1965 when a dpm became a regulation. Before that it was the marley tiles that apparently could be laid on a damp floor...or so I was told. Late sixties should have a dpm, although were the building regs as strict then !!
Yeah that's what I'm thinking, got 2 hygrometers down so will find out tomorrow what sort of reading coming up. If it doesn't have a Dpm could I still get a really low reading as its been so dry lately?
Be careful a floor can read below 75% even without a dpm. If its dry like in summer it might be a false reading. The same spot could read 85% in the winter.
Yes mate, I will definatly Dpm under a solid oak floor just trying to figure out if there is Dpm under the subfloor
Skirting a all off and can't see any sheet. House is painted black round the base so can't even see the dpc. I asked if that was some sort of damp proof but the said it was just paint. There is a section that has cracked in the door way, about half the size of a matwell so may take a piece out there and see what's under it
Well found out today the lounge floor was actually a floated engineered floor...not a solid floor that was apparently stuck to the concrete! Customers are great. Anyway the hygrometers was 75 and 82 and the subfloors have a Dpm so I used Mapie latex trade, 1k turbo and stuck down with a Sika glue Trying to put pics up from tapatalk but the forum is blocking them?
