Establishes minimum design requirements for roof drains including general purpose, gutter and cornice, parapet and promenade, balcony or deck types, which convey rainwater from the roof area of building structures. It includes definitions, nomenclature outlet types and connections, dome or grate free area, top loading classifications, materials and finishes, and accessories. This standard was listed for public review in the 4/21/2000 issue of Standards Action. It is being resubmitted due to substantive changes to the text.