Could excessive water penetrating the Floorify rigid vinyl floor possibly damage my underlay?

Floorify rigid vinyl planks and tiles are completely waterproof. Water that ends up on your floor will not damage your floor. But liquids that enter the floor through the edge (expansion joint) or the joints between the floor panels can cause unhealthy mold under the floor or even penetrate the floor and possibly cause damage. Therefore, do not clean your floor with excessively large amounts of water and ensure that no liquid remains on the floor for too long. When installing in a bathroom or kitchen, we always recommend installing a vapor barrier and sealing the skirtings.