Siphonic Roof
Drainage Systems

A Brief Overview of Siphonic Roof Drainage Systems…

What is a siphonic system?

Siphonic systems are a fully engineered solution for drainage and the techniques have been applied to roof drainage world-wide for more than 30 years. During this time, siphonic systems have been extensively specified and developed and are a modern, highly efficient alternative to conventional systems. Siphonic systems are the best solution to commercial roof drainage in buildings large or small, new or old.

How does it work?

The main principle is that water is sucked or siphoned through rooftop outlets where baffle plates restrict the inflow of air into the system and this allows the system to run at full capacity. The suction of water creates pressure, which in an accurate system means the horizontal siphonic pipes process the water. Ultimately, siphonic systems have a greater capacity to drain water than conventional systems.

What are the advantages?

Sophisticated siphonic systems are not only capable of draining more water than conventional systems but are also beneficial in; less, none- intrusive pipework, better aesthetic appeal and the option to siphon rainwater for harvesting. Systems are made from HDPE pipe, cast- iron and galvanized or stainless steel. Clients benefit from individual designs, accounting for area, rainfall and other environmental factors. Here our expertise is invaluable to ensure a system is not more or less than needed. Here at Siphonic Solutions, state- of-the – art software combined with expert knowledge, mean our siphonic systems are optimal.

But many siphonic roof drainage systems in the UK are outdated and inadequate for today’s ever increasing intense rainfall. We come across many buildings that are simply not coping with the weather which causes serious problems for the businesses within them. This is where Siphonic Solutions can help.

Read more on the 'what we do' page.

Take a look at the image below to see a 3D diagram of a siphonic outlet.