All concrete has moisture vapor emission. Proactively testing the concrete, prior to a new floor installation, can prevent the considerable losses attributed to moisture related floor covering failure.

Do it right, do it once!EP Floors Corp. is a certified applicator of moisture mitigation flooring. These systems reduce the amount of moisture vapor emissions to a safe level, and prevent failure of a flooring system.

These systems add to the cost of your installation, but they are essential in a successful flooring installation, when high moisture levels are present.

Over the long haul, is far less expensive to find the problem and fix it up front, than to have flooring failure in the midst of operations. If you wait until later, the cost to repair it shall be higher, and shall include disruption to your operations.

Concrete Moisture Epoxy Flooring Vapor MitigationSYMPTOMS

Telltale signs of high moisture vapor transmission on an installed floor may include bubbles, blisters, tiny cracks, pinholes, a brown, oily liquid being liberated through the floor, or delamination. The discoloration is caused by dissolved or suspended soil, rust and salts.  Eventually, you may notice delamination of a section of the flooring.  The underside of the delaminated section will be smooth, and there will be traces of a white residue (salt efflorescence),  or rust (which the moisture has transported to the surface of the concrete, from the reinforcing wire or rebar.


The temperature and humidity differential between the building interior, and the moisture within the concrete, causes moisture vapor to be drawn out of the slab, into the building. High levels on internal concrete moisture are an indicator that there may be a problem. This moisture may be due to residual moisture in new concrete, or the result of moisture emanating from below the slab.

Flooring materials that are less breathable, such as epoxy coatings, resilient flooring and carpet with waterproof backings, can make the moisture problem worse.  They can act as a surface moisture retarder and trap moisture vapor between the floor covering and the concrete slab. This may cause coating failures due to chlorides (salts) which are transported within the vapor, to the concrete surface.   If you break apart the failing areas, you may even see visible water “squirting out”.

EP Floors Corp  installs moisture vapor mitigation flooring. These systems are from 12 mils to 1/4 inch thick. They reduce the pressure buildup caused by moisture vapor transmission.


EPOXY FLOORING – has a typical limit of 4 lbs of vapor emissions (lbs of water vapor, per 1000 sq ft/ 24 hours)
URETHANE MORTAR FLOORING – typical limit of 8-12 lbs (depending on thickness).

Our systems also increase durability, and longevity of the flooring system, and provide excellent return on investment.  Moisture mitigation underlayments are available with all of our epoxy flooring systems and polyurethane flooring. Additionally, these systems all carry the EP Floors Exclusive Five Year Warranty.


Types of Concrete Moisture Testing
How to Write A Good Concrete Moisture Test Specification
Concrete Moisture Facts

Moisture problems can be solved through expensive moisture remediation processes;
However, the best method is prevention!