Carpet flooring on the balconies requires a drainage mat underlayment in order for the balconies to properly drain and for the carpets to dry out. We recommend that Hydroduct HR drainage composite plastic wood farm fence Iraqmats (by Grace Construction Product) be placed on the cleaned concrete surface below the carpets. In most cases, no adhering to the concrete is necessary – where there is no lip it may be advisable to tack corners. A hole in the mat should be opened above floor drain for water to dissipate. Please be advised that New York City Building Code requires minimum railing height to be wood plastic composite antifungal agent42”from finish floor. Therefore, it is necessary to verify the height of the existing hand railing, prior to installation of tile flooring. Tiling must be installed by a qualified contractor (names available in the management office).Tile flooring requires a waterproofing membrane under setting bed to prevent moisture from penetrating through the slab and to prevent bond how to clean composite outdoor deck furniturebetween the setting bed and the slab. We recommend that Kemper System be used for waterproofing. It is a cold, two components, liquid applied polyester reinforced membrane roofing system designed to be installed directly over a clean and dry concrete surface.