Acceptable Moisture Levels For Laminate Flooring. Low humidity levels can also have an impact on your flooring. As a rule most parts of the united states will have a rating of about 8 moisture. 14 is the highest moisture reading acceptable for wood subfloors.
Laminate flooring may present a durable plasticized surface to your feet but it s made mostly of wood fibers and wood is sensitive to moisture. 1 to prevent moisture migration up through concrete substrates located on and below grade and damage to installed floor coverings the concrete slab shall be protected from ground moisture and hydrostatic pressure by the use of an industry approved vapour retarder moisture barrier or waterproof membrane having a permeance of less than 0 3 perms 0 2 metric perms in accordance with astm e 96.
As the humidity levels rise above 60 your flooring expands.
Mannington columbia mohawk quickstep unilin each state that subfloor moisture content may not exceed 12. What happens when humidity and laminate mix. 1 in most regions of the country a dry wood subfloor that is ready to work has a moisture content of 12 percent or less or down to about 6 in states with low rh relative humidity. Wood moisture meters for flooring applications come in two varieties.