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A damp-proof course (DPC) [2] is a barrier through the structure designed to prevent moisture rising by capillary action such as through a phenomenon known as rising damp. Rising damp is the effect of water rising from the ground into property. [3] The damp proof course may be horizontal or vertical. [4]
In this manner, the vapor barrier (in this case made of foil/scrim/kraft paper, called ASJ, all-service jacket, aluminium on the inside, white paper on the outside) can remain intact as it penetrates the fire barrier. A vapor barrier (or vapour barrier) is any material used for damp proofing, typically a plastic or foil sheet, that resists ...
The purpose of a Vertical Damp Proof Barrier is to prevent the ingress of damp and water into subterranean structures such as basements, cellars, tunnels and earth shielded buildings. (Also known as Earth sheltered buildings ).
Walls also have vapor barriers or air barriers. Damp proofing is another aspect of waterproofing. Masonry walls are built with a damp-proof course to prevent rising damp , and the concrete in foundations needs to be damp-proofed or waterproofed with a liquid coating, basement waterproofing membrane (even under the concrete slab floor where ...
Moisture protection is a barrier, made from plastics, resins and bituminous products, to prevent the travel of water; typically used on a roof, beneath a cement slab or sidewalk, along a foundation wall, or lining a bathroom floor.
Damp-proofing rods are available with BBA approval. The rods are placed into holes drilled in the mortar course and the active ingredients diffuse along the mortar line before curing to form a damp-proof course. [53] Damp-proofing rods are usually supplied in 180mm (7") lengths suitable for inserting into a 9-inch thick wall.