polymers break down over a period of time preferably less than a month when exposed to certain environmental conditions such as sunlight heat or moisture or a combination of any of these preferably these environmentally degradable membranes will break down in a matter of days the roofing laminate 10 is formed by separately forming the roofing membrane 12 and the protective sheet 14 and laminating the two together if the protective sheet 14 includes an adhesive layer this can be formed by co extruding a pressure sensitive adhesive along with the membrane or subsequently coating the formed membrane with a pressure sensitive adhesive in particular a thermoplastic pressure sensitive adhesive the protective sheet can also be made naturally adherent to the membrane by incorporating tackifiers into the protective sheet and applying the protective sheet to the membrane in a slightly stretched condition which liberates tackifier the exposed tackifier provides weak adhesion of the protective sheet to the membrane once the protective sheet 14 is laminated to the membrane the laminate 10 is formed into a roll 24 alternately as shown in fig3 a thin layer of adhesive 25 may be applied between the first surface of the membrane 12 and second surface of the protective sheet 14 to adhere the two together the adhesive should be clear and have a preferable adherence to the protective sheet 14 as opposed to the membrane 12 a water soluble adhesive is preferred so that if any remains on the membrane 12 after removing.