Roof Drainage Installations Layout With Siphonic System AutoCAD

This AutoCAD drawing presents a detailed roof drainage installation layout with a siphonic drainage system design used for efficient rainwater management on large roof surfaces. The plan illustrates multiple roof zones with directional flow arrows guiding water toward central drainage outlets. Each drainage section includes measured roof areas such as 180.5 m2, 167.4 m2, 150.5 m2, and 176.6 m2, which indicate catchment surfaces connected to siphonic roof drains. The drawing clearly shows the layout of drainage points, pipes, inspection boxes, and directional slopes designed to ensure effective water collection and discharge from the roof surface.