How Water Repellent Coatings Can Protect Commercial Buildings from Moisture Damage: An Architect’s Guide

Water damage is a common and ongoing challenge for commercial buildings, often resulting in expensive repairs and weakened structural integrity. It’s important to choose the right materials from the earliest stages of design, such as water repellent coatings.

Let’s explore the benefits, types, and applications of these moisture repellent coatings so you can make informed design decisions toward the durability and longevity of commercial properties.

What Are Water Repellent Coatings?

Moisture repellent coatings are specialized treatments applied to building surfaces to prevent water and moisture from breaking through to the building’s structure. These coatings work by creating a protective barrier that causes water to bead up and roll off, rather than soaking into the surface.

For architects and builders, understanding water repellency is crucial. Moisture intrusion can cause serious structural damage, promote mold growth and lead to expensive repairs down the road.

Types of Water Repellent Coatings for Commercial Buildings

There are several common types of repellent coatings used in commercial construction. These include silane, siloxane and silicone-based treatments, each offering unique advantages depending on the building material and environmental conditions.

Choosing the right coating comes down to the specific needs of the building.

 

 

Silane coatings

Silane coatings penetrate deeper into porous surfaces like concrete and masonry, providing long-lasting water resistance without altering the outer appearance.

Siloxane coatings

Siloxane coatings form a breathable barrier that protects against water while allowing moisture vapor to escape, reducing the risk of trapped moisture.

Silicone coatings

Silicone-based coatings provide a thicker protective layer suitable for roofs and exterior surfaces exposed to harsh weather.

Importance of Water Repellent Coatings for Commercial Properties: What Architects Need to Know

Moisture repellent coatings play a significant role in protecting commercial buildings from moisture damage that can go on to create much greater issues. Architects should recognize the value in making even the smallest choices that will enhance durability, prevent costly repairs and keep structures strong and secure. 

Protection Against Water Damage

Water damage is one of the most common and costly problems faced by commercial buildings. So, preventing water from seeping into walls, foundations, and other structural components is just as important as other parts of the building plan.

By repelling water on contact, these coatings serve as a first line of defence, helping to reduce cracks, spalling and deterioration caused by moisture penetration.

Preventing Mold and Mildew Growth

Moisture trapped inside building materials can be a breeding ground for mold and mildew, which not only damages the structure but also poses considerable health risks to occupants. Moisture repellent coatings help to keep interior environments dry and safe from spore growth.

Extending the Lifespan of Building Materials

Moisture is a major factor in the degradation of materials like concrete, brick and wood. Applying water repellent coatings slows down this process by protecting these surfaces from water, dirt and other elements that contribute to wear and tear.

Extending the lifespan of building materials not only saves substantial amounts of money on replacements and repairs but also contributes to greener building initiatives.

How Moisture Repellent Coatings Improve Building Durability

Moisture repellent coatings strengthen building surfaces, giving architects and builders a simple way to improve durability and reduce repair needs. They can do this in a couple of ways:

Enhanced Resistance to Environmental Factors

Commercial buildings are constantly exposed to environmental elements such as rain, snow and pollution. Water repellent coatings enhance the building’s resistance to these weather-specific factors by creating a durable, protective surface.

This reduces the risk of moisture-related damage caused by freeze-thaw cycles, chemical exposure and other harsh conditions.

Protection for Exterior Surfaces and Foundations

Foundations and exterior walls are often the first points of contact that water can gain access to, so they’re particularly vulnerable to water damage. This damage can compromise a building’s complete structural integrity. 

Applying water repellent coatings to these areas provides an effective shield against water penetration, helping to maintain the strength, stability and safety of a building over time.

Applications of Water Repellent Coatings in Commercial Buildings

Certain areas of commercial buildings are much more prone to moisture exposure, but thankfully, these moisture-repellent coatings can be applied to a multitude of surfaces.

Use in High-Risk Areas (Basements, Foundations, Roofs)

Water repellent coatings are ideal for high-risk zones like basements, foundations and roofs, offering an extra layer of protection against water intrusion and related damage.

Ideal for Different Building Materials 

These coatings can be applied to various building materials to preserve their integrity by preventing water absorption without altering the surface’s natural look.

Cost Benefits of Water Repellent Coatings for Commercial Projects

When it comes to protecting commercial buildings, preventing water damage is also a smart financial decision. Moisture repellent coatings are a practical, reliable and inexpensive way to protect buildings from moisture problems.

Long-Term Savings on Repairs and Maintenance

Investing in water repellent coatings can lead to significant cost savings over time. By preventing water damage and reducing the need for frequent repairs, building owners can lower maintenance expenses and avoid costly structural fixes.

Cost-Effective Solution for Protecting Large-Scale Properties

For large commercial properties, water repellent coatings offer a cost-effective way to protect extensive exterior surfaces. The application process is relatively quick and efficient, making it a practical choice for tight budgets and timelines.

Tips for Applying Moisture Repellent Coatings in Commercial Settings

Whether you're working on a new construction project or retrofitting an existing structure, understanding the proper application process ensures an effective and long-lasting barrier. 

Surface Preparation and Application Techniques

Proper surface preparation is critical for the effectiveness of water repellent coatings. Surfaces must be clean, dry and free of contaminants such as dirt, oils and existing residues.

Application methods vary based on the specific product but typically include spraying, rolling or brushing. It's important for architects and contractors to carefully follow the manufacturer's instructions to ensure even coverage and the best possible performance.

Curing and Maintenance Considerations

After application, these repellent coatings require adequate curing time to form a durable barrier.

In terms of maintenance, periodic inspections and routine cleaning are key. Cleaning helps remove dirt and oils that can reduce the coating’s effectiveness. Reapplication (when necessary) over the building’s lifespan will also contribute to consistent, long-lasting protection.

Water Repellent Coatings: Your Building’s Best Defense Against Moisture

Water repellent coatings are an essential solution for architects looking to shield commercial buildings from moisture damage. They boost durability, help prevent mold growth and provide long-term savings by forming a dependable barrier against water.

Contact us today to explore our tailored options for all your commercial building needs.