Review on Protective Interlocking Gym Flooring Set: 18-Piece EVA Foam Puzzle Tiles For Home Fitness, Garage, And More by Justin Sharp

I had a ton of these on two large basement storage room floors. Had to move one today and it is wet and moldy underneath. Rest of basement is bone dry except for where these mats were. Throw rugs on bare floor are not wet underneath. Things just sitting on bare floor have no water, floor for 6 inches around walls are not wet. Just where these were laying. I had about 30 of them and it is wet underneath every one.