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Specifications
dpc is a thick, black polyethylene strip with an embossed surface that is used as a dampcourse material
Introduction
Damp proofing in construction is a type of waterproofing applied to building foundation walls to prevent moisture from passing through the walls into interior spaces.
A damp-proof course (often abbreviated to DPC) is a horizontal barrier in a wall designed to resist moisture rising through the structure by capillary action - a phenomenon known as rising damp.
In simpler words, DPC is used to stop dampness in buildings. In theory, due to capillary movement of water, water rises from earth to the building. Passing through foundation it rises higher to reach walls. Reaching water to walls may damage them by creating cracks, breaking cement-paint bonds and creating dark-spots on wall etc. So, to avoid water from reaching to walls, we lay DPC layer at plinth level (the joint level of walls and foundations). DPC layer is usually laid below all the walls unaffected from the issue that the respective wall is a load bearing wall or a partition wall.
Specification
Thickness: 450-1200um
Size/roll: Width: 5-150m; Length: 30-100m
Recommended Use:
Used as a non-exposed dampcourse material in brick and blockwork walls and also
as a concealed flashing around internal window and door frames.
Sizes available
110mm x 30m /50m roll
150mm x 30m /50m roll
230mm x 30m /50m roll
300mm x 30m /50m roll
380mm x 30m /50m roll
450mm x 30m /50m roll
600mm x 30m /50m roll
Special sizes made to order
Physical Property:
No. | Item | Physical Property | |
1 | Weight g/m2 | 450 | |
2 | Tension N/cm | Longitudinal ≥ | 300 |
Transverse ≥ | 250 | ||
3 | Fracture elongation % | Longitudinal ≥ | 200 |
Transverse ≥ | 100 | ||
4 | Break tension N ≥ | 20 | |
5 | Water impermeability 30min no leaking | 0.3Mpa no leaking | |
6 | Cold bending -20°C | No crack | |
package details
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