Roof drains made with bituminous membrane are designed and manufactured in order to make waterproofing with bituminous membranes more reliable and cheaper. They are perfectly compatible with the bituminous layer and, therefore, do not need complicated bonding operations (profiles, re-laying, etc.). By simply heating them with a blowtorch, they can be adapted to different situations (for example, roof drains for horizontal drainage, near corners, etc.). They are simple and inexpensive to apply, require the same equipment used for waterproofing and the same installation system, well known by all contractors. They are easily repairable, being made from polyester reinforced bituminous membrane. They are safe and reliable, as they constitute a single element with the waterproofing.