I am about to replace a badly laid floor in a small, 3m X 1.5m, extension.
What is a good method of sealing the new dpm to the existing solid floor, which is in a terraced house built in about 1890, and therefore probably has no proper dpm of any sort. My query relates to how to stop damp coming up through the join. The join line is the base of what was the original exterior wall, which was knocked through for the extension. Would laying it over the wall base, and seal down with bitumen or WHY be reasonable?
TIA
What is a good method of sealing the new dpm to the existing solid floor, which is in a terraced house built in about 1890, and therefore probably has no proper dpm of any sort. My query relates to how to stop damp coming up through the join. The join line is the base of what was the original exterior wall, which was knocked through for the extension. Would laying it over the wall base, and seal down with bitumen or WHY be reasonable?
TIA