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Moisture Barriers & Flooring

Note: Vapopr problems are preventable with integrally applied
pH resistant adhesive. Click here to learn about Eclipse GF

Information and Helpful Links to Protect ESD Flooring from Moisture

Concrete Moisture Problems

Static control floors should never be installed without first testing your concrete slab for possible moisture and alkalinity problems. Up front testing can prevent future problems and shutdowns due to failed flooring installations.

Did you know that the number one cause of ESD flooring installation failures is moisture permeation through concrete slabs from below the sub-floor? Moisture vapor, inside concrete, becomes alkaline - adversely reacting with flooring adhesives and consequently compromising the bond you expect from adhesives. More importantly, this problem is almost always unexpected because it rarely involves ground water, heavy rains or the local water table - so there are no visual predictors. The problem isn't solved by installing drains or water diverters around a building because it isn't the result of weather. It is the result of evaporation of water from far below the surface and the worst problems are where you would expect them the least: desert and arid climates like California, Arizona, Colorado, Utah, Texas and Nevada. But the problem also haunts many other locations so it's always a necessity to learn about moisture and how to test for it before it ruins your new anti static or conductive flooring installation.

And, if you're a flooring professional - you're expected to know about moisture problems because your client certainly doesn't know about it.

This page contains some information and helpful links to help you get up to speed on this problem.

Helpful links to learn more about hydrostatic pressure, osmotic blisters, vapor emissions and moisture vapor problems installing Resilient and Epoxy Flooring:


Here's ASTM's own description of a resilient floor:
Resilient Flooring — It would be helpful to start with the definition of this category of flooring products, because this term is becoming more commonly used.

According to F 141, resilient flooring is an organic floor surfacing material made in sheet or tile form or formed in place as a seamless material of which the wearingsurface is non-textile. The resilient floor covering classification by common usage includes, but is not limited to asphalt, cork, linoleum, rubber, vinyl, vinyl composition and polymeric poured seamless floors. Resilient in this sense is used as a commonly accepted term, but does not necessarily define a physical property.

Ask your Staticworx Customer Service Representative if GroundLock might be a solution for your moisture problem

Floor Moisture Test Methods & Floor Moisture Problem Articles

American Society for Testing and Materials (ASTM)

  • ASTM F2170-03
    Standard Test Method for Determining Relative Humidity in Concrete Floor Slabs Using in situ Probes1
    Link to purchase ASTM Standard F2170-02
  • ASTM F1869 - 04
    Standard Test Method for Measuring Moisture Vapor Emission Rate of Concrete Subfloor Using Anhydrous Calcium Chloride
    Link to purchase ASTM Standard F1869 - 04
  • Historical Standard ASTM E1907 - 04
    Standard Guide to Methods of Evaluating Moisture Conditions of Concrete Floors to Receive Resilient Floor Coverings
    Link to purchase ASTM E 1907 - 04
    This guide includes both quantitative and qualitative procedures used to determine the amount of water or water vapor present in or emitting from concrete slabs and criteria for evaluating the moisture-related acceptability of concrete slabs to receive resilient floor coverings and related adhesives.
  • ASTM D4263 - 83(2005)  
    Standard Test Method for Indicating Moisture in Concrete by the Plastic Sheet Method
    Link to purchase ASTM Standard D4263-83(2005)

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