Drains for single layer synthetic roofing and waterproofing membranes

A drain assembly for use with a synthetic roofing or waterproofing membrane covering a flat or low sloping surface, comprising:

• a removable grate having a strainer and a connecting collar;
• a hub having a longitudinal passageway, a connection inlet for receiving the removable grate at one end of the longitudinal passageway, and a connection outlet at the other end of the longitudinal passageway;
• a flanged tubular boot contoured to fit snugly around the connection outlet end of the hub comprising a tubular piece of an elastomer with an outlet port at one end and a flange around the circumference at the other end for sealably attaching the boot to the synthetic membrane, wherein the elastomer is identical to or compatible with and sealably attachable to the synthetic membrane and the elastomer and the synthetic membrane are made of materials selected from a group consisting of synthetic rubber, rubber-like materials, plastic, and plastic-like materials;
• and
• a pipe connector defining a longitudinal passageway and connecting the hub nested in the contoured boot to a standard drain pipe.