The term ‘DPM sandwich’ is used within the flooring industry to denote a sub-floor preparation system or process. The term is a rather pleasant euphemism used to describe a lower layer of smoothing compound followed by a middle layer of a liquid DPM (Damp proof membrane), finally covered with a top layer of smoothing compound. One could analogize this by thinking of a Jam sandwich. The bottom layer of bread being the bottom layer of smoothing compound, the jam being the DPM, and the top layer of bread being the top layer of smoothing compound.
Why or what is the purpose of a DPM sandwich? Please click here to find the answer to this question.© Copyright 2016 Wes, All rights Reserved. Written For: Fitmywoodfloor