I have just had a conservatory built, concrete base, dwarf wall -
usual thing. I have a query with something, I am hoping someone here
can please advise.
The concrete base is in a plastic sheet, the internal wall is built on
the base and the external wall built on the footings leaving a cavity,
outside the base and plastic sheet. The doors have been fit on to the
external wall thus leaving a gap between the door casing and the base,
this has been filled in with concrete. My question is 'what is
defending that fill in concrete from rising damp' ? as it is outside
the plastic sheet.