The Oriplast Siphonic Roof Drainage System is a top-quality solution designed for large industrial, commercial, and institutional roofing applications. Utilizing advanced siphonic drainage principles, the system maximizes pipe flow capacity, enabling rapid stormwater removal while reducing the need for extensive underground drainage infrastructure.
Manufactured from durable, corrosion-resistant materials, the system incorporates precision-engineered roof drains, EPDM sealing gaskets, and secure fastening components to ensure reliable, long-term performance. Its optimized hydraulic design allows for smaller pipe diameters, fewer downpipes, and simplified installation without compromising drainage efficiency.
By creating negative pressure within the drainage network during peak rainfall events, the Oriplast Siphonic Roof Drainage System delivers fast, dependable, and highly effective stormwater management. This helps protect buildings from water accumulation while supporting cost-effective, sustainable, and efficient drainage design.
The special outlet is carefully designed to limit air entry at design flow. This results in fast system priming and high velocity full bore evacuation of rainwater.
Unlike conventional gravity drainage, this system utilizes the building's height to generate a substantial hydraulic driving head, thereby maximizing water flow efficiency.
The system requires fewer roof outlets, smaller collector pipes, and fewer downpipes when properly specified and custom-designed, which drastically lowers material costs and installation time.
Designed for integration with RCC roof build-ups including waterproofing membrane, screed/slope layer, gasketed flange interface and vertical outlet penetration through the structural slab. Installation interface must be coordinated with the waterproofing system supplier.
Suitable for industrial metal roof gutters subject to gutter depth, outlet positioning, sealing method, structural support and hydraulic calculation for each project.
Membrane dressing, gasket compression, fastener torque and flange seating must be coordinated with the waterproofing supplier and project engineer. This is a critical long-term performance detail.