Damp-proof membrane

7-2-440

Acronym: dpm

Impervious membrane of bituminous, plastic, or other material placed across the foundation slab of a building, or vertically on the face of a wall, to prevent damp penetration from the external ground. The membrane is connected to the damp-proof course.

Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)

English