The use of a high-quality liquid waterproofing compound in the initial stage with cement and sand can be effective. Otherwise, use a waterproof coating before painting the exterior walls to prevent water leakage. Installing a sump pump is an interior wall waterproofing idea that is specifically tailored to basements. A sump pump uses a centralized sump, or well, that “draws water away from interior walls and collects it using the natural force of gravity.
A pump then discharges water from your home and sends it outside. So, if you don't want to spend a lot of money and a significant amount of time fixing your home, consider waterproofing your walls to avoid these types of problems. Although there are several ways to waterproof a wall, it's wise to hire a professional to take care of the problem rather than going the DIY route and ending up with a home improvement disaster that could be much more expensive and take a lot longer to fix. If applied correctly, waterproof paints create a barrier on the wall surface, keeping them safe from moisture and fungus.
For best results, use a waterproof primer on bare walls before applying a new coat of paint. Silicone waterproof sealant, along with PVS-type water seal tape and waterproof grout, is a great way to waterproof the sink area of your kitchen and bathrooms. You can use this product to seal the joints between the sink and the wall to keep moisture away. This sealant, which can also be applied by the homeowner, is generally used around toilets, bathtubs and even windows.
The liquid waterproofing membrane method, which involves the spray application of a polymer-modified asphalt membrane, is also one of the most popular ways of waterproofing a wall. If the foil test showed that water is soaking into the basement walls and leaving them damp, seal the inside of the walls with a high-quality waterproof paint, such as DRYLOK White Extreme Waterproofing (available from Home Depot). For general wall waterproofing in good condition, Dulux Weathershield is the universally respected waterproof paint for exterior walls, but once again, make sure the wall can breathe. Also, avoid applying waterproof paint (or any other type of waterproof coating) to a damp wall.
Large commercial waterproofing projects %26 Below ground tanks, basements %26 under concrete slab should be carried out by professional waterproofing companies.