Siphonic Roof Drainage System Design

One or more roof drains 2.

Siphonic roof drainage system design.

Aco siphonic drainage traffic free roof areas which are no larger than 150 m2 such as production buildings hangars or sports stadiums are suitable applications for siphonic drainage. Syphonic systems are the most efficient method of doing this and whilst they can be applied to most industrial roofing designs you must always ensure that your system is installed by competent syphonic drainage contractors make sure your system runs properly. The siphonic roof drainage system is based on the ingenious gravity induced vacuum principle. A point of discharge.

Either the contractors or the designers. It is instead a technique of no pitch pipe design used to achieve desired flow from roof drains to point s of discharge. Unlike traditional roof drainage systems a siphonic system is designed to operate with the piping completely charged with water during a rainstorm. With a flat level design long horizontal runs above overhead ceilings are pos sible as shown in illustration 4.

Siphonic roof drainage systems at low rainfall intensities and flow rates a siphonic system operates similarly to a conventional system with water flowing through the pipe network at atmospheric pressure. Siphonic roof drainage is not so much a system in terms of a pre engineered product or package. A vertical drop from the roof level to some lower level and 3. An overview of siphonic roof drainage systems all roof drainage systems have three main elements in common beyond the fact that they all use pipes to convey the water.

A siphonic roof drainage system however is said to prime during storm events and operate filled with water. When the rainfall is heavy enough the gullies create reduced pressure in the pipe system. Siphonic roof drainage systems must be sized with a hydraulic calculation by a validated program state law requires that this calculation must be performed by a licensed engineer. A professional support package is provided to clients based on sound engineering principles.

Comprising high quality stainless steel siphonic roof outlets high density polyethylene hdpe pipes fittings and a professional support package the siphonic roof drainage system allows the complete drainage of a roof without the requirement of a slope in the pipework thus saving valuable space.