Water tanks in large complexes and even in small homes, are usually placed underground or overhead. Therefore there is always, a chance that water may seep through the common joints between the house and the tank; especially if the tank is badly constructed, or simply not waterproofed. This is a huge risk because leakage and seepage can damage your internal walls, and even result in health complications to the inhabitants.
Repairing an existing water tank is a time-consuming process. It is very difficult to pin point the exact location of the leakage. Water travels through the smallest capillaries, and can be visible or drip through a part of the structure, when in fact the point of leakage is actually somewhere else.
How It Works
The conventional way is the application of cement slurry that will stop the leakage for the time being. It’s only a temporary solution to waterproof the tank which is done to arrest the leakage from cracks & joints.
The more economical and more effective solution involves a lot more work, but it is a long-lasting solution. It is actually a two-step solution that is achieved by saturating the surface to be treated with a high performance Polymer modified cement-based coating. The second step involves complete waterproof grouting of the construction joints using a polymer modified mortar over the treated surface.
Why opt for the polymer modified mortar option?
The polymer-modified mortar solution wins hands-down over the conventional method.
The process involves a thorough repair of all cracks, leaks and other joints prone to leakage. Prior to the repair, the water tank is thoroughly cleaned of dirt, oil and other loose material. This ensures that this is not a stop-gap treatment, but the entire surface is treated and waterproofed.
The material used is a latex and cement or polymer and cement ratio, which is far more durable than the conventional cement slurry. A plain concrete solution is less flexible and cracks over time.
It Depends on Commercial Building, For Example if they are having Restroom, They they should be having water Tank as well!
Sump / Tank water proofing will give long time benefits.