Meeting/Event Information

Guide to Siphonic Storm Drainage 

Course Description: Traditional gravity storm drainage requires sloped pipe dictating the need for multiple vertical stacks within the design. Siphonic drainage allows the pipe to run dead level flat, utilizes ½ the diameter pipework, and provides 3-4x faster discharge for less ponding.   

Content Outline:

• Do Gravity Drains hit a failure point? 
• What are Siphonic Roof Drains?     
• Benefits of Siphonic Roof Drainage?
• Standard/Codes governing Siphonic Roof Drainage?
• Install Difference: Bracing? Siphon Break? Cleanouts? 

Instructor: Brennan Doherty is a recognized leader in the field of Siphonic Drainage, serving as the Director of Siphonic Drainage for MIFAB HydroMax. With over 1,000 successful Siphonic projects, MIFAB HydroMax is unquestionably the leading provider of Siphonic Roof Drainage solutions in the US. 

In his current role, Brennan is responsible for educating owners, engineers, design-build contractors, and architects, on the many technical, design, and cost-saving benefits of Siphonic Roof Drainage. This innovative technology has proven to be a highly effective and value-engineered alternative, with numerous high-profile projects including Walmart, Costco, Amazon, NASA, Marriott, and State Farm using the approach. 

Brennan's expertise in Siphonic Drainage is well-established, having helped to introduce the technology into the ASPE Design Handbook V2 and obtaining BMEC approval for Ontario. He has also published multiple articles and delivered presentations at both national and local levels for organizations such as ASPE, Tilt-Up, MCAA, PHCC, and IAPMO.