Detail Flat Roof Drainage Design Guide

Alwitra flat roof details.

Detail flat roof drainage design guide.

Roof drains from zurn include combination primary overflow control flow dual outlet siphonic retrofit and more which cater from educational to commercial needs. Design assistance services are offered as a courtesy to the roofing. Details and technical drawings of the flat roof drainage as downloads in the practical pdf dxf and dwg formats. Since many roofing systems have not been in production for 20 years the designer should consider proven systems as a first step in obtaining roof design life.

Some observers suggest it s harder to replace a flat roof than a traditional pitched shingle roof because of the labor required to remove its layers especially on older flat roofs. Flat roofs are hard to replace. Most buildings utilize a minimum 20 year roof design life. Your building and location can help determine which drain will fit your roof needs.

A flat roof s design is both efficient and economical. Flat roof drainage system specifications designs troubleshooting problems solutions for interior drains on flat building roofs flat roof drains scuppers and screens questions answers about keeping the flat roof drainage system working or about installing new drains in a flat roof. In order to ensure a finished surface with zero fall a design fall of 1 80 should be used and a detailed structural analysis should account for construction tolerances settlement and for. This could mean flat roofs may not raise the same red flags they used to.

Flat roofs are nothing new nor are some of the proven materials that cover these often expansive roofs such as those found on factories warehouses big and small box stores apartment buildings large public structures and schools universities. But now flat roofs often are constructed with fewer layers because of improved waterproofing technology. Drain locations and deck slope verification for ponding water or deflection. Along with the benefits of a flat roof come unique challenges.

Roof drains zurn plumbing products groupspecification drainage operation 1801 pittsburgh avenue erie pa 16502 phone 814 455 0921 fax. Roof system design life should be a starting point in the selection of roof systems. A rooftop garden or additional outside living space are the top reasons people choose flat roofs.