Hi, I run a small gourmet mushroom farm in Louisiana. We are upgrading our farm by adding a few shipping containers as fruiting rooms. These containers already have a wood floor, but as the floors will constantly be getting wet, I need some sort of waterproof flooring to go over them. I am wondering if this product has a smooth flat surface. I need something I can easily squeegee water puddles off of. If this product does not have a smooth surface, can you please recommend one that will?