Subfloor Consultants Air Distribution Underneath False Floor So we ordered a sealer on-line, sealed a portion of the ground , waited 72 hours after which laid down sample vinyl planks on top of it. Within two days the ground was moist again beneath the sealed area. At this point http://commercialdemolition95900.diowebhost.com/49953421/sensible-subfloor-ventilation-cost-products-a-useful-analysis