Painting over Waterproofing for Commercial Properties

In commercial properties, maintaining the integrity and longevity of surfaces is crucial. One way to achieve this is by waterproofing surfaces and using the right painting options and techniques. This article will guide you through the different painting options available for waterproofed surfaces in commercial properties and provide insights into the techniques that can be employed for the best results.

Why Waterproofing Matters?

Before delving into the painting options and techniques, it’s essential to understand why waterproofing is vital for commercial properties. Waterproofing plays a significant role in protecting the infrastructure from water damage, which can lead to costly Repairs and maintenance. Whether it is the exterior walls, roofs, or basements, water can seep in through cracks and crevices, causing structural damage and promoting mold growth.

By applying a waterproofing system, you create a barrier that prevents water from entering the building’s structural elements. However, simply waterproofing is not enough. Providing an additional layer of protection through painting ensures that the waterproofed surfaces remain intact for an extended period.

Painting Options for Waterproofed Surfaces

There are different painting options available that can enhance the waterproofing capabilities of surfaces in commercial properties. Let’s explore some of these options:

  1. Elastomeric Paint: Elastomeric paint is an excellent choice for waterproofing surfaces in commercial properties. It is a flexible coating that expands and contracts with temperature changes, allowing it to withstand cracks and movements. This type of paint forms a robust and impermeable barrier against water, protecting the underlying surfaces.

  2. Masonry Paint: Masonry paint is specifically designed for application on masonry surfaces, such as concrete or brick. It provides a protective layer against water penetration while allowing the walls to breathe. This type of paint is ideal for surfaces that experience high levels of moisture, as it prevents water from seeping in without trapping moisture within the walls.

  3. Acrylic Paint: Acrylic paint is widely used for waterproofing interior surfaces in commercial properties. It forms a durable and waterproof coating that resists moisture and prevents water damage. Acrylic paint comes in various finishes, allowing you to choose the level of sheen and appearance that suits your preferences.

  4. Silicone Paint: Silicone paint is a popular choice for protecting exterior surfaces against water damage. It forms a water-repellent barrier that allows moisture to bead up and roll off the surface. Silicone paint provides excellent resistance to UV rays, extreme weather conditions, and pollutants, making it ideal for commercial buildings exposed to harsh environments.

Techniques for Painting Waterproofed Surfaces

Now that we have explored the different painting options suitable for waterproofed surfaces, let’s discuss the techniques that can be employed for best results:

  1. Surface Preparation: Before applying any paint, proper surface preparation is crucial. It involves cleaning the surface, removing dirt, grime, and loose particles. Additionally, fill any cracks or holes with an appropriate filler and smoothen the surface to ensure a uniform finish.

  2. Priming: Applying a primer is essential to improve paint adhesion and enhance the waterproofing capabilities of the surface. The primer creates a bond between the paint and the waterproofing layer, increasing the longevity of the paint job. Make sure to choose a primer that is compatible with the paint you plan to use.

  3. Applying the Paint: When applying the paint, make sure to follow the manufacturer’s instructions and use the recommended tools. Apply the paint evenly and in multiple thin coats if necessary, allowing sufficient drying time between each coat. Ensure that the paint is evenly distributed, providing full coverage to the surface.

  4. Maintenance and Retouching: Regular maintenance is necessary to preserve the waterproofing properties of painted surfaces in commercial properties. Inspect the surfaces periodically for any signs of damage or wear and promptly address the issues. If required, perform retouching by cleaning the surface and applying a fresh coat of paint to maintain the integrity of the waterproofing system.

Frequently Asked Questions (FAQs)

Q: Can I paint over existing waterproofing membranes?

A: Yes, it is possible to paint over existing waterproofing membranes. However, proper surface preparation is essential to ensure adhesion and longevity of the paint job.

Q: How often should I repaint the waterproofed surfaces in my commercial property?

A: The frequency of repainting depends on various factors such as the type of paint used, exposure to environmental elements, and the level of maintenance. It is recommended to repaint every 5-7 years or as needed to maintain the waterproofing and aesthetic appeal.

Q: Can I use any type of paint for waterproofing surfaces in commercial properties?

A: No, not all types of paint are suitable for waterproofing surfaces. It is important to choose paints specifically designed for waterproofing applications to ensure optimal results and durability.


Waterproofing surfaces in commercial properties is essential for preventing water damage and maintaining the overall integrity of the building. By utilizing the right painting options and techniques, you can enhance the waterproofing capabilities of surfaces, ensuring long-lasting protection and aesthetic appeal. Whether you opt for elastomeric, masonry, acrylic, or silicone paint, make sure to follow proper surface preparation, use a suitable primer, and apply the paint evenly. Regular maintenance and retouching will help preserve the waterproofing system’s effectiveness, providing a reliable shield against water infiltration for years to come.

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?