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.
A: It is a high-performance stormwater management solution engineered for large industrial, commercial, and institutional roofs. It utilizes negative atmospheric pressure to rapidly drain rainwater at full-bore capacity.
A: Unlike gravity drainage that relies on pipe slope and carries mixed air and water, siphonic systems restrict air entry at the outlet to generate a hydraulic vacuum. This pulls water at high velocity through full-bore pipes without requiring horizontal pipe slopes.
A: Key benefits include rapid stormwater removal, smaller pipe diameters, significantly fewer downpipes and roof outlets, reduced underground piping infrastructure, lower material costs, and faster installation.
A: The precision-engineered roof drain outlet features an anti-vortex mechanism designed to limit air entry during design flow, causing fast system priming and high-velocity full-bore water evacuation.
A: The system includes precision-engineered siphonic roof drain outlets, EPDM sealing gaskets, secure fastening components, horizontal collector pipes, and vertical downpipes.
A: Because siphonic systems operate under negative pressure with 100% full-bore water flow (zero air space), higher hydraulic flow rates are achieved through smaller diameter pipes compared to gravity-fed pipes.
A: Yes, the system is suitable for industrial metal roofs and metal gutters, subject to gutter depth, custom outlet positioning, proper sealing, structural support, and project hydraulic calculations.
A: For Reinforced Cement Concrete (RCC) flat roofs, the outlets integrate directly into the roof build-up using waterproofing membranes, screed/slope layers, gasketed flange interfaces, and vertical structural slab penetrations.
A: Because collector pipes run flat horizontally along the ceiling structure without needing a downward gradient slope, they save headroom and free up valuable interior design space.
A: The system incorporates durable, weather-resistant EPDM sealing gaskets along with gasketed flange interfaces to ensure long-term watertight structural connections.
A: By combining multiple roof drain outlets into fewer vertical downpipes routed to a single discharge point, it drastically reduces the required depth, length, and cost of underground trenching and civil piping.
A: Yes, each siphonic system requires project-specific hydraulic calculations based on roof surface area, local rainfall intensity, gutter layout, building height, and structural layout.
A: The system utilizes the vertical height of the building to generate a substantial hydraulic driving head, increasing negative pressure and maximizing water flow velocity.
A: By creating a strong suction effect during severe downpours, it rapidly evacuates heavy rainfall, preventing standing water accumulation and reducing structural load stress on the roof.
A: You can submit project drawings and roof specifications through the Oriplast website or contact their technical sales department via the toll-free line at 1800 123 2123 for custom hydraulic design support.