In a siphonic roof drainage system, Smith’s specially engineered and tested roof drain baffle allows and sustains negative atmospheric pressure in the connected piping and inhibits the admission of air

Mar 1, 2001 · Unlike traditional roof drainage systems, a siphonic system is designed to operate with the piping completely charged with water during a rainstorm. A siphonic roof drain has a special insert that acts as an air baffle and anti-vortex …

Unlike traditional roof drainage, which is designed to flow part full, a syphonic system operates at full capacity, when water is sucked or syphoned from the roof down into the drain at high velocity.

HydromaxTM Siphonic Roof Drainage system Frequently Asked Questions. 1. How does a HydromaxTM Siphonic Roof Drainage system work? 2. How do the costs for a HydromaxTM Siphonic Roof Drainage system compare to a Traditional. Gravity solution? 3. What types of buildings are suitable for a HydromaxTM Siphonic Roof Drainage system? 4.

Feb 14, 2024 · Siphonic roof drainage systems are the most effective rainwater discharge technology for flat and low-gradient roofs. Compared to gravity systems, siphonic drainage boasts at least twice higher flow rate, offering better protection from leaks and overflows.

Jul 4, 2022 · Siphonic drainage is a relatively straightforward process. Sophisticated siphonic roof drainage systems operate at full capacity, unlike traditional gravity drainage systems, when water is sucked down from the roof and into the drain at high speed.

Dec 12, 2024 · Siphonic drainage is an advanced method of removing rainwater from roofs. Unlike traditional gravity systems, which rely on sloped pipes and partial water flow, siphonic systems eliminate air from the pipes to create a vacuum effect.

A siphonic roof drainage system consists of a series of specially designed roof drains connected to a discharge point at or below ground level by pipe work that is assembled to specific dimensions such that all air is removed from the system resulting in more efficient solution.

As rain falls and enters the piping system through the HydroMax® Siphonic Roof Drain, the design of the roof drain with air baffle and anti-vortex plate inducer prevents further air entering the pipe and promotes water filled pipework.

Siphonic drainage for flat-roofed buildings Effective rainwater discharge systems are critical for ensuring the structural integrity and safety of flat or low-gradient roofs. Inefficient drainage can lead to sagging, overflow and leaks while also exposing your roof to …