Pre-finished premium grade engineered flooring installation to seven brand new luxury townhouses in Narre Warren. WAKOL PU 280 moisture barrier were applied to the concrete slab prior laying the floor. One coat of WAKOL PU 280 Moisture Barrier will block moisture in concrete slabs up to12 lbs. /1000 sq. ft. / 24 hour (ASTM F 1869) or up to 90 % rH (ASTM F 2170-02). After full cure, the Relative Humidity (RH) of the concrete were tested. Engineered floorboards were left onsite acclimate with the surrounding climate. Floorboards then were laid directly to the slab using WAKOL MS 230. WAKOL MS 230 is flexible, premium single component adhesive for the interior installation of 3/4” solid wood strip as well as wood planks up to 4“ wide of north American species, Engineered wood flooring with no limitations.