Staff Answer
Mar 09, 2024 - 03:33 AM
Per the installation guide for the product https://www.greenbuildingsupply.com/c... , " subfloor�?� Hardened wood floors can be installed on almost any type of subfloor - for example, wooden or cement concrete floors.�?� Make sure the subfloor is level, flat, dry, and clean.�?� Any unevenness in height greater than 1/16" over a length of 6 ft needs to be leveled - use patching or leveling compound or ground/sand the area.�?� Concrete or slab subfloors must have a maximum relative humidity (RH) of 80% RH at 68 degrees F. "And read further on the instructions for more.
