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Water Isolation
Structures are exposed to water due to; – Precipitation such as rain, snow,
– Moisture of the soil and rainfall or domestic water absorbed by the soil,
– Water use in wet areas such as bathrooms and toilets,
– Pressurized or unpressurized groundwater on the ground on which the structure is built. Water cannot be prevented from threatening the structure and comfort in the ways listed above, but water can be prevented from entering the structures. The processes performed on the surface of the building envelope to protect the buildings against water or moisture that may come from all directions are called “waterproofing”. One of the most important factors that damage buildings is water. Water penetrating into our buildings causes deterioration and cracking of the concrete in the bearing parts of our buildings and rusting of the reinforcement in reinforced concrete, leading to a decrease in their carrying capacity. Our buildings are exposed to external water such as rain, snow, soil moisture, groundwater in the ground where the building is built, and internal water in wet areas such as bathrooms, sinks, etc. In order to protect the buildings from water and its harmful effects, the processes carried out to keep the water outside the buildings and to keep the water inside the building in structures such as pools, drinking water tanks, ponds, etc. are called “waterproofing”. Basically, materials that provide water impermeability are also called waterproofing materials. Materials used in waterproofing are grouped under three different headings according to their usage areas and properties.
I. Waterproofing Blankets
-Bituminous membrane covers: Oxidized bituminous membrane covers, Polymer bituminous membrane covers (with APP/SBS additives) -Geomembrane Synthetic covers: PVC membrane, EPDM membrane, TPO membrane, FPO membrane, ECB membrane,
HDPE membrane
II. Sliding Based Materials
-Cement based materials
-Acrylic based materials
-Bitumen based materials
-Polyurethane resin based materials and polyruea coating
III. Structural Waterproofing Materials
-Building chemicals
-Joint materials Waterproofing materials should be selected according to the purpose of use and the area to be applied; water pressure in the environment, the structure of the ground, the movements expected from the structure, possible loads on the product, climatic conditions and details in the structure.
