Planning to use your vinyl roll flooring on a newly constructed 14' x 36' wooden shed (truck, motorcycles, and garden tractor storage). The floor is plywood over 12"oc floor joists. Obviously, moisture will, over time, affect the wooden flooring. Has this product proven satisfactory in this type application? Since it won't cover a 14' width without a seam, do I need to worry about moisture (dripping from vehicles) leaking through said seam?