Premium Glueless LVT planks are suitable for installation over double layer wood subfloors that are a minimum of 1” thick, or single layer subfloors constructed with APA rated Sturd-I-Floor panels, 23/32” or heavier. Joist spacing should not exceed 19.2”. Set fasteners 1/32” below the subfloor surface, sand joints smooth and fill holes and gaps wider than 1/8” wide. Install suitable underlayment when necessary to achieve a flat or solid surface. Premium Glueless LVT planks can be installed over underlayment grade plywood, lauan plywood and other underlayments recommended by the manufacturer for use with luxury vinyl plank. Installation over oriented stand board and particle board is not recommended since these panels presents a greater risk of sub-floor instability and can detract from the performance of the floor. Wooden subfloors installed over a crawlspace should have a moisture barrier installed in the crawlspace with at least 18 inches of ground clearance.
NOTE: Avoid subfloors with excessive vertical movement or deflection because subfloor movement will telegraph through to the finished installation. Indications of excessive deflection are subfloor fastener release, squeaking, compromised or sectional contours such as bowing or dipping in floors and uneven flooring material. Nail or screw subfloor panels to secure boards with excessive vertical movement or deflection prior to installation of the Premium Glueless LVT planks. If the subfloor has excessive vertical movement (deflection) before installation of the flooring, it is likely it will do so after installation of the flooring is complete. Our warranties DO NOT cover any problems caused by inadequate substructures or improper installation of said substructures.
Premium Glueless LVT planks can be installed over concrete on all grade levels, if a proper moisture barrier is used. Moisture vapor emissions should not exceed 5 lbs./24 hour per 1,000 sq. when tested with the Anhydrous Calcium Chloride Test in accordance with ASTM F 1869 or 80% RH in accordance with ASTM F 2170 “Standard Test Method for Determining Relative Humidity in Concrete Slabs using in situ Probes. A 6 mil polyurethane moisture barrier should be used with concrete subfloors. Fill cracks; saw cuts and control joints and level uneven areas that exceed 1/16” in 3’. Do not install flooring over expansion joints.
Premium Glueless LVT planks can be installed over a variety of finished floors including single layer resilient sheet floor and tile, ceramic, marble and terrazzo. The surface must be in good condition and show no signs of excessive moisture conditions. Level deep or wide grout lines with embossing leveler. Do not install flooring over heavily cushioned floors or over tile installed over concrete below grade level. The grout joints in ceramic tile and marble must be leveled so they are flush with the tile surface. Additionally the tile may require several skim coats to achieve a flat surface.