Damp-proof course
From Wikipedia, the free encyclopedia
A damp-proof course (often abbreviated to DPC) is a horizontal barrier in a wall designed to prevent moisture rising through the structure by capillary action - a phenomenon known as rising damp.
Building standards in many countries require most new buildings to incorporate a DPC at the time of construction. This may consist of a thin strip of plastic, a course of engineering brick or slate, or a layer of bitumen.
Where a DPC is absent or inadequate, there are various means of retrospectively fitting one. A common method in masonry walls is to drill holes into the wall at regular intervals and inject a penetrating chemical (e.g. silicone) into the holes. The chemical is absorbed into the masonry where it dries to form a waterproof barrier.
A Damp Proof Membrane (DPM) performs a similar function for a solid floor.
This is also called 'damp course' or 'DPC'.
 |
This architecture-related article is a stub. You can help Wikipedia by expanding it. |
