What kind of sub-flooring (substrate) is needed?
Cork tiles can be installed directly over concrete or plywood sub-floors and over primed drywall. Plywood sub-floors: Plywood substrate must be clean and free of all adhesives, paint, grease, oil, dirt and other foreign matter. All fasteners must be recessed from the surface area. All seams and voids can be flashed with cementious patching cement only. (Example: Ardex Feather Finish). Never use a gypsum-based product. Plywood should be installed within specified trade practices. Deflections of no more than 1/8″ in 10 feet should be kept. Plywood should be secured via staples and glue. Nails and screws have a tendency to creep up after some time passes. The use of a self-leveling cement works best, giving a truly leveled floor. Cement or Concrete substrate: Cement or concrete must be cured, free of paint, oil, dirt, grease and foreign matter, salts and alkaline, moisture content of less than 2 lbs. per square foot. Cement or concrete must be troweled smooth with a cementious patching ce
