6 Simple Steps to Waterproofing Exterior Walls

25, April 2023

Exterior walls are constantly exposed to various weather conditions, such as rain, wind, and humidity, which can cause moisture to seep into the walls, leading to serious structural damage over time. Waterproofing the exterior walls of your home is an essential step in maintaining the integrity of your property. In this article, we will discuss simple steps that homeowners can take to effectively waterproof their exterior walls.

Six Step Illustration Showing Process of Waterproofing the Outside Walls of a Building

1) Inspect your walls

Before you begin waterproofing, it's important to inspect your walls for any cracks, gaps, or other signs of damage. This can be done by visually inspecting the walls or by using a moisture meter to check for any moisture trapped within the walls. If you notice any damage, it's important to repair it before you begin the waterproofing process. This will ensure that the waterproofing material adheres properly and provides long-lasting protection.

2) Clean the walls

The next step in waterproofing your exterior walls is to thoroughly clean them. Dirt, dust, and other debris can prevent the waterproofing material from adhering properly, which can compromise its effectiveness. Use a power washer or hose to wash the walls, making sure to remove any dirt, grime, or mould. Allow the walls to dry completely before moving on to the next step.

3) Apply a waterproofing sealant

Once your walls are clean and dry, you can begin applying a waterproofing sealant. There are several different types of sealants available, including silicone, acrylic, and polyurethane. Each type has its own unique properties, so it's important to choose the one that's best suited for your specific needs. Follow the manufacturer's instructions carefully when applying the sealant, making sure to cover all areas of the walls thoroughly.

4) Install a drainage system

In addition to applying a waterproofing sealant, it's also important to install a drainage system to help prevent water from seeping into your walls. This can be done by installing a French drain or a sump pump, which will divert water away from your home and prevent it from collecting around your foundation. It's important to have a professional install your drainage system to ensure that it's done correctly.

5) Install a vapour barrier

In addition to a drainage system, it's also important to install a vapour barrier to prevent moisture from accumulating within your walls. This can be done by installing a sheet of plastic or other moisture-resistant material behind your exterior walls. The vapour barrier should be installed between the insulation and the wall, and should be sealed around all edges to prevent moisture from getting in.

6) Regular maintenance

Finally, it's important to regularly waterproofing for exterior walls system to ensure that it remains effective over time. This includes inspecting your walls for any signs of damage, such as cracks or leaks, and repairing them promptly. You should also clean your walls regularly to prevent dirt and debris from building up and compromising the effectiveness of your waterproofing system.

A picture of a grey wall with a Seepguard waterproofing system installed on it


Waterproofing your exterior walls is an essential step in maintaining the integrity of your property. By following these simple steps, you can effectively waterproof your walls and prevent moisture from seeping in, which can lead to serious structural damage over time. Remember to inspect your walls regularly, clean them thoroughly, apply a waterproofing sealant, install a drainage system and vapour barrier, and perform regular maintenance to ensure that your waterproofing system remains effective for years to come.

Birla White Seepguard is a high-quality waterproofing product that is specifically designed to protect exterior walls from water damage. It is a two-component system that includes a primer and a topcoat, both of which work together to provide a seamless and effective barrier against water penetration.

One of the key advantages of Birla White Seepguard is its ability to withstand extreme weather conditions. It is highly resistant to UV rays, which can cause other types of waterproofing products to degrade over time. This means that it can provide long-lasting protection even in areas with high exposure to sunlight.

In addition, Birla White Seepguard is designed to be breathable, which allows moisture to escape from the walls while preventing water from penetrating the surface. This is important because it helps to prevent mould and mildew from forming inside the walls, which can be a serious health hazard.

Another advantage of Birla White Seepguard is its ease of application. It can be easily applied using a brush, roller, or spray gun, and it dries quickly to form a tough and durable surface. This means that it can be applied in a relatively short amount of time, which is important for busy homeowners who want to protect their homes from water damage without disrupting their daily routine.

Overall, Birla White Seepguard is an excellent choice for homeowners who want to protect their exterior walls from water damage. Its high-quality formulation, resistance to extreme weather conditions, breathability, and ease of application make it an ideal choice for any home. By using Birla White Seepguard, homeowners can ensure that their homes remain safe, dry, and free from water damage for years to come.

Also Read - Protect your interior walls with Seep Guard Interior Waterproofing Surfaces