Siphonic drainage uses the principle of negative pressure to accelerate the flow of rainwater.
With fewer air pockets in the pipes, the system reaches full-pipe flow faster, enabling rapid evacuation of water and reducing the number and size of vertical downpipes needed.
Pam Building’s epams® system offers an advanced siphonic roof drainage solution engineered to evacuate large volumes of rainwater quickly and efficiently. Unlike traditional gravity systems, the siphonic principle creates a full-bore flow within the pipes, enabling higher discharge rates with fewer downpipes. This system is ideal for large flat roofs on structures like airports, shopping centers, warehouses, and gymnasiums.
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