The pre-formed polymer bitumen drain outlets are manufactured to be reliable and economical but above all 100% compatible with the torch on membranes. These products are 100% compatible with the polymer bitumen waterproofing membrane and therefore do not require complicated application procedures. They are adaptable, easy to torch in different situations which arise on roofs, like corners, horizontal drains, etc. They are easy and economical to apply and simply require the same tools as those used for the polymer bitumen membranes, well known by all applicators. They are also easy to repair as they are made of polymer bitumen membrane reinforced with polyester. Fully compatible with the torch on membranes, they become one with the waterproofing system. These exclusive accessory items from PLUVITEC are covered by European patent.