Epoxy and Garage Flooring Vancouver

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Metro Vancouver and Fraser Valley

604-445-2857

778-846-3126

Opening Hours: Monday – Friday 08am–6pm

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Get A Free Quote Today
Please enable JavaScript in your browser to complete this form.

Metro Vancouver and Fraser Valley

604-445-2857

778-846-3126

Opening Hours: Monday – Friday 08am–6pm

Office Locations
We usually respond within 24 hours. Alternateively you’re welcome to call our offices.

Metro Vancouver and Fraser Valley

604-445-2857

778-846-3126

Opening Hours: Monday – Friday 08am–6pm

Why Concrete Moisture Matters: How Moisture Testing Prevents Flooring Failures

When it comes to installing epoxy, polyaspartic, or decorative concrete coatings, one of the most common causes of flooring failure is hidden moisture. Even the most durable and high-quality coating system can peel, blister, or delaminate if excess moisture is trapped beneath the surface.

At Crown Coatings, we’ve seen firsthand how proper moisture testing and preparation make all the difference between a long-lasting floor and one that fails prematurely. In this blog, we’ll explain why concrete moisture matters, how testing works, and what you can do to ensure your flooring project succeeds.


Understanding Concrete and Moisture

Concrete may look solid, but it’s actually a porous material that continuously absorbs and releases moisture. Water from the subgrade (ground beneath your slab), humidity, or even construction materials can migrate upward through the concrete.

This natural movement of moisture, known as moisture vapor transmission (MVT), can cause serious problems when you apply a coating on top. If vapor pressure builds up underneath the coating, it can lead to:

  • Bubbling or blistering in the surface finish

  • Peeling and delamination of the coating

  • White, cloudy discoloration

  • Weak adhesion and premature failure

Ignoring these issues doesn’t just affect appearance — it also impacts performance and longevity.


Why Moisture Testing Is Crucial Before Installation

Professional flooring contractors like Crown Coatings always conduct moisture testing before applying epoxy or polyaspartic systems. This ensures that the surface is suitable for coating and that the adhesive bond will last.

Common moisture testing methods include:

1. Calcium Chloride Test (MVER Test)

This measures the Moisture Vapor Emission Rate (MVER) from the concrete surface over a 24-72 hour period. It’s one of the most common and cost-effective tests for determining surface-level moisture.

2. In-Situ Relative Humidity (RH) Test

This test measures the humidity inside the concrete slab, giving a more accurate reading of long-term conditions. Small sensors are inserted into drilled holes, and results show the slab’s internal moisture level.

3. Electronic Moisture Meters

These provide a quick, non-destructive way to identify problem areas. While not as precise as lab-based tests, they’re useful for initial assessments.

The results from these tests determine whether your concrete is ready for coating or if additional moisture mitigation steps are needed.


How Moisture Control Protects Your Investment

If moisture levels are too high, it doesn’t mean your project has to stop. It simply means the right precautions must be taken.

Crown Coatings offers moisture mitigation solutions such as:

  • Vapor barrier epoxy primers that seal the surface.

  • Moisture-tolerant base coats designed to handle high humidity environments.

  • Surface grinding and cleaning to ensure proper adhesion.

By addressing moisture before installation, we ensure that your coating system remains durable, glossy, and resistant to wear for many years to come.


Real-World Benefits of Proper Moisture Testing

When done right, moisture testing and mitigation offer long-term benefits:

  • Better adhesion – Coatings bond stronger and last longer.

  • Reduced maintenance – Fewer repairs or reapplications needed.

  • Improved performance – Floors remain resistant to chemicals, abrasion, and traffic.

  • Peace of mind – You’ll know your investment is protected from within.


Partner with Crown Coatings for Reliable Results

At Crown Coatings, we take surface preparation and testing seriously. Our expert team uses industry-leading equipment and certified testing methods to ensure every floor is built to perform — whether it’s an industrial warehouse, commercial kitchen, or residential garage.

By combining precise moisture evaluation with top-tier epoxy and polyaspartic materials, we deliver floors that look beautiful and stand the test of time.


Ready to start your flooring project the right way?
Contact Crown Coatings today for a free consultation and moisture assessment. Let’s make sure your next floor isn’t just strong on the surface — but built on a foundation of quality and durability.

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