Any moisture that evaporates through concrete and becomes trapped beneath a flooring product can cause the adhesive to emulsify and release, causing cupping, seams separating, wheel ruts in LVT, discoloration in the floor, or mold and mildew below the flooring. All of this can lead to an installation failing and needing to be completely removed and addressed, costing time and money.
If moisture is present in a slab, there are several options to solve or survive the problem. One way to survive it is using Patcraft's EcoLogix® carpet tile which is comprised of a fiber matrix that leaves pathways for vapor to move and escape out through the seams so it does not become entrapped below the tile. To the left are images showing PVC cushion, EcoLogix® and Urethane backings that were installed over wet glue and left for 60 days. The images are of the bottom of the tile which show how long the glue took to dry. EcoLogix's fiber matrix backing wicks moisture to the seams better than PVC or Urethane. The lighter tiles indicate moisture, while the darker the tile becomes means the moisture has escaped and the glue has hardened.