Methods – Damp proofing is accomplished several ways including all :
- A damp-proof course (DPC) 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. The damp proof course may be horizontal or vertical. A DPC layer is usually laid below all masonry walls, regardless if the wall is a load bearing wall or a partition wall,
- A damp-proof membrane (DPM) is a membrane material applied to prevent moisture transmission. A common example is polyethylene sheeting laid under a concrete slab to prevent the concrete from gaining moisture through capillary action. A DPM may be used for the DPC.
- Integral damp proofing in concrete involves adding materials to the concrete mix to make the concrete itself impermeable.
- Surface suppressant coating with thin water proof materials such as epoxy resin for resistance to non-pressurized moisture such as rain water or a coating of cement sprayed on such as shotcrete which can resist water under pressure.
- Cavity wall construction, such as rainscreen construction, is where the interior walls are separated from the exterior walls by a cavity.
- Pressure grouting cracks and joints in masonry materials.
What is the full form of DPC?
What is the Full Form of DPC in Construction? The full form of ” DPC ” is ” Damp Proof Course “, where “D” stands for “”, “P” stands for “Proof” and “C” stands for “Course”. DPC (Damp Proof Course) as the name suggests is a layer of water-repelling material provided between the source of dampness and the building component in order to prevent dampness in the building.
What is a DPC course?
What Is DPC In Construction? – Damp Proof Course DPC means Damp Proof Course which is applied at basement levels, which restricts the movement of moisture through the walls and floors of a building, Mostly DPC courses are required in new build properties which are most sensitive to moisture in order to prevent rising dampness subsequently.
The role of DPC In Construction is to prevent dampness from the ground rising up the walls which might cause damage to property. Excess moisture results in damage to plaster, and decoration and could also result in wet rot, or dry rot affecting unprotected timbers of a structure, Every building is required to have a damp-proof course that is situated at least 150 mm above ground level,
A DPC material maintains its effectiveness until the building movements further result in cracking or bridging,
Where DPC layer is provided in building construction?
Thickness of damp proof coarse (dpc) – Generally DPC layer is provided at ground level of structure like building,Dam,Bridge water sewage plant,water treatment plant and etc, in building construction dpc is generally provided at the height of 400 mm maximum upto level of flooring or top of plinth.
What is DPC (damp proof course)?
Types of damp proofing course (dpc) – According to their use and function damp proofing course is broadly classified into three categories 1) DPC 2) DPM 3) integral damp proofing 1) DPC :- it is a barrier through the structure designed to protect moisture rising by the capillary action such as through of phenomenon known as rising damp.the DPC layer is usually laid below all masonry wall commonly hot bitumen used as dpc known as Asphalt.2) DPM :- damp proof membrane material like polyethene plastic sheet applied to prevent moisture transmission.3) integral damp proofing :- involves use of some extra additive material to the concrete mix to make the concrete material itself impermeable to water.