Importance of Exterior Waterproofing Maintenance

If you’re a homeowner, protecting your home is one of the most significant investments that you can make. Part of this protection includes ensuring that your home is waterproofed. Waterproofing systems play a crucial role in preventing water-related issues and deterioration.

However, regular maintenance for exterior waterproofing systems is often overlooked. Homeowners tend to forget that these systems need attention over time, just like any other component of their homes.

In this article, we will discuss the importance of maintaining waterproofing systems and how it helps prevent water-related issues and deterioration.

What are Exterior Waterproofing Systems?

Exterior waterproofing systems are applied on the outside of the foundation walls to prevent water from penetrating into the home. These systems can be either membrane-based or coating-based.

Membrane-based waterproofing systems consist of a continuous layer of waterproof material, usually made of plastic or rubberized asphalt. These materials are attached to the foundation walls through the use of a special adhesive. The membrane acts as a barrier, protecting the foundation from water intrusion.

On the other hand, coating-based waterproofing systems are applied on the exterior surface of the foundation walls. They are usually made of liquid-applied materials and are spray or roller-applied. Coating-based waterproofing systems are less expensive than membrane-based systems, but they offer less protection.

No matter which type of waterproofing system you have, it’s essential to maintain it regularly to ensure that it functions properly.

Why is Regular Maintenance Important?

Regardless of how effective your waterproofing system is, it will face wear and tear over time. Exposure to harsh weather conditions, soil movement, and temperature changes can all take a toll on the system.

The following are some of the reasons why regular maintenance is crucial for your exterior waterproofing system:

Prevents Water Intrusion

Damage to your waterproofing system can allow water to seep into the foundation and the basement. If left unchecked, water penetration can cause extensive damage and significantly compromise the structural integrity of your home. Regular maintenance helps to identify any damages and address them before they become more severe.

Saves Money

By maintaining your waterproofing system regularly, you can avoid costly Repairs in the future. Ignoring small issues can lead to more significant problems, which can be expensive to fix. Regular maintenance also ensures that your waterproofing system remains effective, saving you money on your water bills and energy costs.

Extends the Life of Your System

Regular maintenance can help to extend the life of your waterproofing system. By addressing small problems, you prevent them from becoming more significant issues that could potentially compromise your system’s performance.

Increases Home Value

A well-maintained waterproofing system can add value to your home. Prospective buyers will appreciate the care that you have taken in maintaining your home and its components.

How Often Should You Maintain Your Waterproofing System?

The frequency of maintenance depends on several factors, including the type of system you have and its age. However, it’s a good idea to have your waterproofing system inspected by a professional at least once a year.

At the very least, you should visually inspect your waterproofing system regularly. Check for cracks or holes in the foundation walls or drainage issues around the perimeter of your property.

What Should You Look for During a Visual Inspection?

Here are some things to look out for during a visual inspection of your exterior waterproofing system:

Visible signs of damage

Inspect the foundation walls for any visible signs of damage, such as cracks, holes, or discoloration. Also, check the waterproofing membrane or coating for any tears, punctures, or signs of wear.

Drainage Issues

Ensure that your drainage system is working correctly. Make sure that your gutters and downspouts are free of debris and positioned correctly to direct water away from the foundation.

Grading Issues

Inspect the grading around your property. Ensure that it slopes away from the foundation to prevent water from accumulating near the foundation walls.

What Can You Do to Maintain Your Waterproofing System?

Here are some things that you can do to maintain your waterproofing system:

Keep Gutters Clean

Keep your gutters and downspouts clean and free of debris to ensure that water flows correctly. Regularly clean them out to prevent clogging.

Improve Drainage

Ensure that your downspouts extend at least six feet from the foundation walls. You can also install extensions that will direct water further away from the foundation. Check that your drainage system is functioning correctly and that water is flowing away from your property.

Address Water Issues

If you notice any water intrusion or dampness in your basement, address the issue immediately. Waiting could lead to more severe issues.

Fix Cracks and Holes

Fill any cracks or holes that you notice in the foundation walls promptly. Small cracks can develop into more significant issues, so it’s best to address them early on.

Invest in Professional Maintenance

Hire a professional to inspect your waterproofing system regularly and address any issues that they uncover. Professional waterproofing system maintenance typically involves cleaning, repairing, and replacing any damaged components.


Regular maintenance of your exterior waterproofing system is essential to protect your home and prevent water damage. By addressing small issues as they arise, you can prevent more significant problems from developing. Keep in mind that the frequency of maintenance will depend on several factors, including the type of system you have and how old it is.

By keeping your waterproofing system well-maintained, you can save money on costly repairs and increase the value of your home. Don’t wait until an issue arises before inspecting your system. Be proactive and ensure that your home remains protected and structurally sound.

Cape Town Waterproofing

Leave a Comment

Your email address will not be published. Required fields are marked *

Open chat
Need help?
Hi there,
Can I offer you a FREE no obligation quote?