Construction

Which type of DPC recommended for the protection of dampness?


For residential buildings DPC consists of a layer of  

 
  1.  40 mm thick cement concrete 1:2:4 (1 cement: 2 Coarse sand: 4 graded stone aggregate 12.5 mm nominal size ).  

  2. 50 mm thick cement concrete 1:2:4 (1 cement: 2 coarse sand: 4 graded stone aggregate 20 mm nominal size). 

This layer is used with water proofing compound. The DPC must extend the full width of the wall. It must be continuous for the whole length of the building. There should be no construction joint in the damp proof course. The DPC is not carried across doorways, verandah arches and similar openings. 
 
The dried surface of the DPC properly cleaned and painted with the two coats of hot bitumene @ 1.7 kg per sq. meter allover. 

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Dampness causes most of the damage to the contents of the building. It often leads to the growth of molds and bacteria and creates an unhealthy environment for those who occupy it. Dampness gradually impairs the affected part of the building so this problem should be attended as soon as possible.
Dampness in building or house may cause most of the damage to the components of the building or house. Dampness often leads to the growth of molds, mites and bacteria that creates an unhealthy environment and causes health problems. Damp proofing with the help of chemicals may protect your house.
Brick and masonry absorb water so they must be sealed off, away from moisture and moisture-bearing substances like soil. If it does not occur, the water will rise in the walls causing dampness.
Cement plaster 1:3 with two coats of hot bitumene when laid @ 1.7 kg per sqr meter or cement plaster 1:3 with bitumen
The foundation of all structures are embedded into the soil. Bricks being porous or brick masonry below ground level can absorb moisture from adjacent ground.
For residential buildings DPC consists of a layer of-
The following table expresses the type of coating recommended for the protection of Dampness:
The density of masonry bricks used must be greater than 1200 kg/m³.
REPLASTERING: The most common method is to scale the affected damp plaster back to the brickwork and replaster the affected area with a waterproof plaster or cement mixture.
The water proofing membrane is laid out on top of the existing floor surface. It will act as a barrier against dampness.
.Dampness in buildings is a concern because it often leads to the growth of molds and bacteria
The following brands of chemical are used for the protection of dampness from building:
A damp building is unhealthy to those who occupy it, dampness in building is a concern because it often leads to the growth of molds and bacteria.
The following method should be adopted for the protection of dampness in floor:
Horizontal DPC :- All the brick walls should be covered with the horizontal DPC at the floor level.
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