The problem is that most concrete needs to defend against water. If it isn't cracked (which doesn't happen in real life), it will usually keep liquid water out, but water vapour can easily get through. We should remember that most of this will be underground when the building is finished.
So it's important to get it right the first time (watertight, strong, flexible, tear-resistant, reliable, and elastic). Even going back to fix it costs a lot of money. That's why we need to waterproof the foundation. A good one would be to drain water away from concrete foundations and stop it from moving through the concrete.
Types Of Foundation Waterproofing:
- Interior basement waterproofing:
Coatings can be used to waterproof an interior basement where condensation is the main source of water. It also works if the problem is only slightly damp. Installing a backwater valve is one of the most effective precautions to save your basement. Installing a drainage system is the hardest and most effective way to keep water from the inside of a building.
There are different ways and things that can be used. A French drain with a sump pump, rubber walls, water-wicking tiles, and a drainage membrane is a good solution. With that system, water can get out without hurting the walls.
- Foundation crack injections:
Foundation crack injections fix cracks in poured concrete foundations caused by settling or the concrete expanding and contracting. For structural reasons, epoxy crack injections are used, while hydrophobic or hydrophilic polyurethane injections seal cracks and keep water from getting in.
The problem can be fixed by injecting a sealant into the crack cavity. This is easy to do from the inside. This method drills holes every 6 to 8 inches along the crack. Then, set it so that it is perpendicular to the crack and at a 45° angle so that the drilled hole crosses the crack near the middle of the treated wall. This makes sure that the sealant is spread as well as possible.
- Interior sealants:
Using interior sealants to waterproof your basement, you can stop the walls and floors from soaking up water from getting into other parts of the house. Most seepage comes in through cracks in poured concrete foundations and holes where pipes go through.
Epoxies, strong glues, can seal these holes, or urethanes can be pushed into the holes under pressure. With these interior sealers, high humidity in the basement won't soak into the bricks and cause spalling. The humidity level in the basement stays low because of the sealants on the inside.
- Exterior basement waterproofing:
Waterproofing outside the basement is meant to prevent water from damaging the building significantly. Polymers and membranes cover the outside of the basement walls in this way. Most polymer-based products last as long as the building does and are not affected by the pH of the soil.
Polymer-based waterproofing materials can be sprayed directly on a wall. They harden very quickly and are semi-flexible, so the substrate can move to fill the cracks.
- Interior water drainage:
A drainage system can help keep water from building up under your basement by moving water from the footers of the house foundation out below the basement floor. A common way to get rid of water that has gotten into a basement is to run a channel along the foundation footers around the basement.
The new channel covers a French drain, a PVC pipe, or a patented drainage system with new cement.
Are you looking for the best waterproofing contractor in Pondicherry?
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Contact us if you have any further questions about waterproofing or need guidance on what to do next.
We would be overjoyed to do so if we can assist you. Do call: 93848 36661.