Our mission statement:

To research, set standards and disseminate best practice in UK siphonic drainage, from design to installation.

Siphonic drainage was first introduced in the 1960's in Scandinavia and since then has been used widely across Europe, including the UK, in the Far East, Australasia, South Africa and the USA.. Many large industrial, commercial and retail buildings are now fitted with siphonic drainage, which has clear advantages over gravity drainage.

SRDA recognises and is committed to the adoption  of the Trade Association Forum 'Best Practice Guide 2006' wherever feasible.


Netherwood F c“Having been the Technical Manager at BLUCHER UK for over 20 years providing technical support on all aspects of our Stainless Steel above and below ground drainage systems, I helped develop and launch BLUCHER’s Siphonic Roof Drainage range in 2011.

As Chairman of the Siphonic Roof Drainage Association I want to raise the profile and reinforce the image of the SRDA as a professional Trade Association that is a source of expert help and best practice advice to Clients, Developers, Contractors Specifiers and Architects in order to promote the effective use Siphonic Roof Drainage in the UK market.”