DecTec ?Guardian? is a high quality, heat-weldable waterproof membrane with a textured surface, designed to accept foot traffic. Guardian?s internal fiberglass reinforcement means unparalleled dimensional stability (lays perfectly flat when unrolled), excellent fire properties, and the ability to create practically any flashing required right on site - no other membrane has this ability! Our unique spread coat construction fully encapsulates the reinforcement making it impossible to delaminate - and able to withstand multiple freeze/thaw cycles through the harshest weather conditions. For your balcony waterproofing requirements, specify Guardian.