Southeast Texas receives 50+ inches of rain annually, and Katy TX sits on clay soil that holds water at the surface. Concrete slabs act like wicks — they absorb ground moisture and transmit it upward through the slab. Without proper treatment, this moisture causes epoxy to bubble, peel, and fail within months.
What Is Moisture Vapor Emission (MVE)?
Concrete is not waterproof. It's a porous material that allows water vapor to move from the wet soil beneath the slab up through the concrete and into your garage or basement. Moisture vapor emission is measured in pounds per 1,000 square feet per 24 hours. Standard epoxy systems fail above 3 lbs; premium moisture-barrier systems handle up to 25 lbs. Testing before coating is the only way to choose the right product.
Why It Matters Before Epoxy
Moisture trapped beneath an epoxy coating has nowhere to go. It builds up, creates hydrostatic pressure, and eventually forces the coating off the slab from below — those are the bubbles and blisters you see in failed floor jobs. In the Katy area, skipping a moisture test is one of the most expensive mistakes a homeowner can make.
Our Process
- Moisture testing — ASTM F2170 in-situ RH test or F1869 calcium chloride test
- Source identification — rising damp vs. condensation vs. surface water intrusion
- Crack and joint sealing — close all pathways for liquid water entry
- Moisture-barrier primer selection — matched to actual MVE reading
- High-build moisture-barrier system — appropriate for Houston humidity levels
- Topcoat — polyaspartic or polyurea rated for the application conditions
Our Floor Problem Services
Certified testing methods before any product is chosen.
High-build epoxy rated for elevated moisture conditions.
Stop liquid water before it reaches the coating.
Full coating matched to your slab's actual MVE reading.
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