THE GREATEST GUIDE TO SUB FLOOR MOISTURE

They may also Test that The inner floor DPM (damp-proof membrane) laps in the DPC during the partitions to sort a watertight seal.  The mortar used for DPC should be leveled and even, and may be free from projections so which the damp proof course will not be ruined. DPC really should be laid in such a way that a constant projection is furnished.A