Waterproofing is one of the behind-the-scenes stuff that benefits everybody, from babies to the elderly. Reports have shown that waterproofing only accounts for 1% of a building’s construction costs but when ignored, it can be responsible for almost 90% of the damage Waterproofing system provides protection to the structure from water ingress. The practice of waterproofing dates back to ages where the different techniques used were bituminous, metallic sheet, polyurethane based and so on.
Areas of Waterproofing is Needed;
Waterproofing is prevention of water and vapour ingress. It is helpful to fill the structural crack and move. It applies positive preferred.there are different types of waterproofing. like. Sheet membrane, liquid, Bentonite, cementations. Therefore choosing the best method waterproofing is quite pivotal. Given below are some of the waterproofing types.
Cementitious products are probably the easiest waterproofing materials to use. They’re readily available from suppliers of masonry products, and they’re easy to mix and apply. If you plan to use this material, a long-handled brush will make your life easier. Also, spend the extra money to buy acrylic additive (a white, milky liquid) to mix in with the cement product. You’ll get better bonding and a more solid, durable coating.
The chief disadvantage is that cementitious products have no give to them probably because cement just doesn’t stretch to any degree worth mentioning. They will stand up fine to a head of water, but will tolerate almost no joint or crack movement.
Cementitious waterproofing is used in the following type of structures:
Liquid waterproofing membrane
Liquid Roofing is the process of waterproofing a roof by the application of a specialist liquid roof coating. It is suited to all types of roof, including flat, pitched, and domed. Liquid roofing involves the application of a monolithic, fully bonded, liquid based coating to a roof. The coating cures to form a rubber-like elastomeric waterproof membrane, capable of stretching and returning to its original shape without damage. Such coating systems are usually reinforced with secondary materials such as glass-reinforced plastic to provide additional tensile strength. The coatings can be applied over most traditional roofing materials, including felt, asphalt, bitumen, and concrete.
The process of liquid roofing provides a cost-effective method of making a new or existing roof waterproof. It can deliver up to 25 years performance depending on the coating system employed. It is estimated that liquid roofing is 70% less expensive than overall roof replacement in refurbishment situations.
Bituminous waterproofing systems are designed to protect residential and commercial buildings. Bitumen (asphalt or coal-tar pitch) is a mixed substance made up of organic liquids that are highly sticky, viscous, and waterproof. These systems are sometimes used to construct roofs, in the form of roofing felt or roll roofing products.
Bituminous Coating Waterproofing Method
Bituminous coating is a type of coating used for waterproofing and flexible protective coating. It is an excellent protective coating and waterproofing agent, especially on surfaces such as concrete foundations.
Bituminous Membrane Waterproofing Method
Bituminous membrane waterproofing is a popular method used for low-sloped roofs due to their proven performance.
Polyurethane is made up of two components, base and reactor. Polyol acts as the base, while isocyanide is the reactor component. The combination of both these in a specific design ratio creates a liquid coating for waterproofing applications. Polyurethane is a rather popular choice due to its ease of installation. Unlike other waterproofing systems like sheet membranes and liquid applied membranes, this polyurethane application requires comparatively less skill and supervision. Application is fast and this type of treatment can be used for post construction applications as well.
It is easy to install, provides seamless finish and have a long term durability and wear resistant. It is UV and weather resistant alkaline cleaners, battery acid and fuels.
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