Types of Waterproofing Coating
In the building construction industry, waterproofing refers to the process of protecting walls, floors, roofs, and foundations against water infiltration. It also prevents the buildup of water, ice, and humidity that could potentially lead to mold growth.
The main types of waterproofing coatings include cementitious, liquid, and bituminous. Cementitious is one of the most common waterproofing methods because it is inexpensive and can be applied in many applications.
Liquid waterproofing is a type of coating that consists of a primer coat and a couple of top coats that are applied by spray, roller, or trowel. This method offers more flexibility than cementitious waterproofing because it turns into a rubbery coating on the surface when it dries.
Another frequently preferred waterproofing method is bituminous coating, which is a flexible protective coat based on its formulation and polymerization grade. The waterproofing properties of this material can be affected by the polymer grade as well as the reinforced fiber used to make it.
This coating is excellent for protecting concrete foundations because it has high elongation and tear strength as well as strong UV resistance. In addition, it is able to withstand temperature changes and exposure to weathering.
Self-adhering membranes, also called “peel and stick” membranes, are an attractive choice for application at the construction site due to their ability to be easily removed or repositioned when necessary. These membranes are often made of PVC thermoplastic or polyurethane rubber sheets. They are easy to install and can be cut or welded into place.
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