Water penetrates through rock so how can structural remain impenetrable in front of the force of water. We all have suffered water seepage damages for long. Foundation, ceilings and even walls cannot resist the water inherently.
A lot of research and study has gone into building a water-resistant structure to avoid the maintenance cost and hassles. Whether the building under consideration is a home or a commercial space, waterproofing is the must for increasing the life of the same.
Let us understand how builders ensure the building remains water resistant for years:
Types of Waterproofing in construction:
1. Cement Waterproofing
Cement is the most affordable and easiest method to make a structure waterproof. But most of the times, it is used to waterproofing area that is not exposed to rain, snow, and sun. The process is simple and can be executed by professionals of medium scale expertise. As its area of application is primarily inside, it is not exposed to the risk of expansion and contraction due to weather changes.
Due to its higher flexibility and low cost of application, one can find its use in waterproofing bridges, dams, tunnels, parking lots, Water storage tanks and more
2. Liquid Waterproofing
Different polymers are used to apply a thin coating on the structure to waterproof it. The water resistance of the liquid proofing is determined by the kind of polymer that was used to make the coating. It is generally applied in 2 coats using a spray or roller. Most of the times asphalt’s modified version are used to make a liquid membrane that is applied using sprays. The market is brimming with such liquid polymers but the right one for your building can be determined only by experts.
3. Bituminous Coating
The bituminous coating acts as an excellent waterproofing coat. Although it is not strong enough to face the sun, as it becomes brittle and fragile when due to its less flexible nature. Trusted as a brilliant waterproofing agent, the Bituminous coating is made of polymerized asphalt and its grade determines its flexibility.
Generally, it finds its use under a plastered surface or wooden floor where it acts as an excellent sealer. Bitumen and the solid polymer are mixed to make this coating and it is the ratio of the polymer that determines the flexibility of the coating. It becomes essential to determine the right flexibility for the right application.
The bituminous coating also finds its use on coating carbon steel pipes that are mostly buried underground. It is a simple way to protect the structures against any kind of erosion due to water seepage.
4. Bituminous Membrane
Available as large rolls, bituminous membrane is spread over the application areas primarily low-roofs. These are self-adhesive and tar based adhesives are used to ensure the sheets stick well. As these membranes offer 2 to 4 mm of waterproofing layer they are ideal for covering areas like roofs but also require right kind of slope so that water keeps flowing off.
The adhesion plays a pivotal role in bituminous membranes lifespan. Resins, oils and specific polymers are used by experts to increase the bond between the surface and the membrane. Its flexibility is generally kept 150% so that it can withstand the external impact of temperature and sunlight. The experts ensure the membrane is laid out in a manner so that it does not puncture during application.
5. Polyurethane Liquid Membrane
Heavily exposed areas need server waterproofing. Polyurethane liquid membrane is expensive but is ideal for covering flat roofs that are more prone to water leaks.
The kind of waterproofing during construction is determined after assessing the kind of exposure and weathering to the area after consideration. It takes a lot of inspection effort to decide the same to keep the structures waterproof.