Damp proofing is used in the assembly of brand new homes and buildings. It is an fundamental application to the foundation structure to avert damp rising and filtering through the walls of the construction into the inner spaces.
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Damp Proof Methods
There are an assortment of methods which can be used of which the laying of a horizontal barrier at foundation wall level is probably the most used. A membrane is used to give rise to a concrete surface through which damp cannot go through. If not done correctly, water rises from the ground through the building walls and causes damage to the building in the form of cracks, paint chipping, and spots on the wall surface. The membrane basically acts as a barrier.
Wrong Diagnosis
More often than not, paint chipping and condensation problems are credited to rising damp. Only in uttermost cases can such be acceptable. If a membrane was properly applied when the building was erected as part of damp proofing, there should not have been a problem. Other factors that can give to condensation problems include that of improper application of cement to the outside walls and usage of low-cost plaster material in the middle.
Damp proofing should be ready upon erection of a building to forestall salt from the ground to be absorbed in the walls. The membrane used in the procedure can include any of the following resources:
- Bitumen
- Stones
- Plastic sheets
- Asphalt
Plastic is the favored material for damp proofing. It is a strip that is laid between two layers of bricks at ground level. The plastic is normally made from polythene and can also be laid underneath a hard floor slab.
If a building has no dampproofing membrane remedial work may be needed to prevent further structural damage and health problems associated with the dampness. Holes can be drilled into the walls and silicone used to fill the holes. Another method is to apply damp proof substances. Yet, a further method involves the transfusion of a silicone based substance. It is essential to avoid the usage of asbestos or lead based damp proof materials.
Roof Waterproofing
The roof of the building must be waterproofed effectively to prevent leaks and collapsing of the roof due to water build-up and structural blemish. South Africa has a multipurpose climate. As warm as it can get, it is also a country known for storms and long periods of soft rain, making it cardinal to recondition any roof damage abruptly. Rather than attempting to do the water proofing, get an expert in as mistakes made can be costly, apart from the danger of working on the roof.
Damp and Waterproofing for Roofs
There are a choice of methods that can be used to put a stop to leaks. Liquid sealants are among the most shared applications. Rubber or plastic coatings can also be applied everywhere the roof has a concrete slab. The plastic or rubber is flexible and can move along with the concrete.
Tar shingles are also used as one of the methods. It is important to first repair any warped shingles. Synthetic applications can be used in the case of flat roofs where you don’t want gravel to be used on the roof. Gravel in many instances hinders the identification of leaks and as such is a method not often used. If there are only minute isolated leaks the experts will apply a silicon-based substance to fill the leaks. Make certain approved water and damp proofing by making use of a trusted company.