Portals Plus, Inc. 484 N. Thomas Drive Bensenville, IL 60106 Tel: (630) 595-7320 Toll-Free: (800) 624-8642 Fax: (630) 766-5259 Toll Free Fax: (866) 466-9335 E-mail: portalsplus@portalsplus.com Web site: www.portalsplus.com Roof Drains For efficient internal drainage of water from the roof surface. Roof Drains are an effective year-round solution to removing water from the roof surface in all weather and all seasons. Interior Roof Drains have the advantage over gutters and downspouts because interior Roof Drains are maintained at the interior building temperature and are far less likely to freeze and back up in harsh northern climates. With the advent of sloped roof decks and tapered insulations, it has also become necessary to include Overflow Roof Drains to relieve dangerous overloading of the structural system caused by heavy ponding water. SPECIFICATIONS
Drain shall consist of a molded ultraviolet
stabilized polyethylene or cast aluminum dome strainer, a cast aluminum
epoxy coated gravel guard and clamping ring, an injection molded ultraviolet
stabilized PVC drain bowl (also available in cast iron or cast aluminum),
6" long schedule 40 drain body extension, cast aluminum underdeck clamp,
flexible expansion joint coupling with stainless steel clamps and all hardware
shall be stainless steel.
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