Detail Flat Roof Drainage Design Guide

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Detail flat roof drainage design guide.

Flat roof drain types. Keep in mind all flat roofs have a slope of between five and 15 degrees to allow water to flow into drain systems such as eaves drainage holes or outlets. The drainage requirements for flat roofs on buildings present some special problems that we describe and illustrate here. Drain locations and deck slope verification for ponding water or deflection.

There are roof coating products available if there isn t enough slant or slope to accomplish this. Of course the best designed flat roof has the correct amount of pitch to drain the water off naturally. Along with the benefits of a flat roof come unique challenges. The most critical of these issues is the flat roof drainage systems.

The flat roof drainage design guide can go up against different style that when nitty gritty right can ooze a cutting edge feel. Poor drainage can lead to serious issues with flat roofing from leaks to structural damage. Your building and location can help determine which drain will fit your roof needs. At page top and at left our photos show a low slope roof surrounded by a parapet.

Roof drains zurn plumbing products groupspecification drainage operation 1801 pittsburgh avenue erie pa 16502 phone 814 455 0921 fax. It is a requirement of building regulation part h that adequate provision is made for rainwater to be carried from the roof of the building. All in all a flat roof offers many advantages for everyone. Details and technical drawings of the flat roof drainage as downloads in the practical pdf dxf and dwg formats.

There are three types of drain systems commonly used on flat roofs. The one challenge with flat roofing is ensuring proper drainage. Watch for clogs blockage at the roof drain or scupper. Roofs of this design will have one or more roof drains or scuppers installed.

Unlike other roofing types that are slanted or sloped to allow water to drain automatically flat roofs need a built in drainage system to help remove moisture and debris. Alwitra flat roof details. This information will teach you about thermal design insulation and consideration deck types fire performance wind load design falls and drainage locating equipment safe access assessing requirements improving drainage falls and improving thermal properties.