The Superior Pro-Shield Shower System contains all the pieces and accessories you need to fully waterproof and prepare a shower for tiling. Build your shower with boards, membranes, curbs and a shower pan to establish the base shape. Then complete with the finishing touches like drains and valve seals. The 3’ 3" x 33’ Superior Pro-Shield Membrane is a lightweight, polyethylene membrane for use under tile and stone surfaces in wet applications.