Hello, I have a guy out to do screeding in a few weeks and tells me I may need DPM after they do there test, what is this test does anyone know and is it a legal requirement ?thanks
Your floor might have moisture in it, if it's too high then you'll need some sort of barrier hence your screeder may need to put a damp proof down
How old is the sub floor. Less then a year old it could still have moisture in it. Older then 1965 it won’t have a damp proof sheet membrane under it. We Dpm all sub floors older then 1980 in most cases
