Discover the principles, benefits, and real-world applications of siphonic rainwater drainage
Efficient rainwater management is critical in modern building design—especially for large roofs and complex structures. This CPD explores the science and strategy behind siphonic rainwater drainage systems, offering insights into how they work, why they’re used, and how to design them effectively.

What you'll learn:
This CPD covers the full scope of siphonic drainage, including:
- Who we are and what we do – An introduction to our expertise in advanced drainage solutions
- History of siphonic rainwater drainage – From early innovations to modern-day applications
- How siphonic drainage works – Understand the physics behind full-bore flow and negative pressure
- Benefits of siphonic drainage – Reduced pipework, fewer downpipes, lower installation costs, and greater design flexibility
- Reference projects – Real-world examples showcasing successful siphonic installations
- Design principles – Key considerations for layout, flow rates, and compliance
- Siphonic system components – A breakdown of the essential parts: outlets, pipes, brackets, and design software
Why take this CPD?
- Master innovative drainage design – Learn how to apply siphonic systems in commercial and industrial projects
- Earn CIBSE or RIBA approved CPD credits – Fully accredited and recognised across the construction and engineering sectors
- Free to attend – Whether via a webinar or face-to-face, join our CPD at your convenience
- Improve project efficiency – Discover how siphonic systems can reduce material use and simplify installation
Who should attend?
This CPD is ideal for:
- Architects and Building Designers
- M&E Consultants and Engineers
- Contractors and Drainage Specialists
- Specifiers working on large-scale or complex roof structures
Start your CPD today
Complete the short form below to access the course and elevate your drainage design expertise.