TUFFLEX SYSTEM "PED-ON-PLYWOOD" is an exceptional solution to the challenges of plywood substrates for pedestrian traffic bearing deck waterproofing at ski resorts. This unique and fast curing system can be applied to walkways, balconies, stairways, roof top patios and other ski resort decks. This “TUFF”, flexible, seamless, fully adhered and easily maintained system combats the expansion and contraction stresses of thermal movement and freeze thaw cycles in very harsh climates. TUFFLEX SYSTEM "PED-ON-PLYWOOD" can be sloped to provide for better drainage as well.