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Damp Proofing

Protection from adverse weather is of paramount consideration for any housing or commercial building. For this reason, it is advisable to select suitable materials for combating the harshest climatic conditions that must be specially included in the structure's composition. This makes it vital to choose appropriate protective materials during construction. At Buildworld, we stock multiple ranges of products designed and manufactured by top brands meeting the requirement of British Standard (BS) compliances. Water seepage can be countered through Damp-Proof Course (DPC) or Damp-Proof Membranes (DPC) or, at times, even a combination of the two.

DPC and DPM are well known to ward off moisture but differ in how and where they are applied. When there is a chance of water seepage through capillary action, DPCs are used vertically at ground construction or horizontally at the base wall to stop the damp from penetrating further. DPCs may comprise metal, plastic, felt paper, and slate and are now also made with modern technology in bricks. A mason typically rolls out a layer of DPC over a bed of cement, cutting it as per the required size and adds another layer on top. This DPC is applied to a height of 150mm above ground level. This way, if it rains, the wall will not soak moisture and will remain insulated from damp ingress. A DPC may also be installed flat all along under the inner skin of a wall or floor to combine it with a DPM.

The basic difference between DPC and DPM is that the former is used in the walls and the latter is incorporated into the flooring. An "Oversite" is when the mason first installs a hard layer, then a soft layer of sand, with a layer of DPM and concrete on top.

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