MFMA POSITION ON RH TESTING

Effective October 1, 2011, the Maple Flooring Manufacturers Association (MFMA) will ONLY recognize relative humidity (RH) testing as the standard method for reading concrete moisture levels with a concrete slab. 

The MFMA recommends that the RH level for a concrete slab for a non glue-down maple floor system is 80% or lower and for glue down systems the RH should be 75% or lower before installation commences.

The ASTM method is F2170 “Standard Test Method for Determining Relative Humidity in Concrete Floor Slabs Using In-Situ Probes”.  

For more information, please visit the MFMA & WOOD page on my site, or visit www.maplefloor.org