Parapet Bowl Outlet
For drainage from flat roofs with roofing felt or roof foil, where the roof drain pipe is routed through the parapet. The drain has an oval outlet pipe and a low installation height.
Smart and efficient drainage through the parapet
When it comes to reliable and discreet drainage of flat roofs, the details in the roof construction play a crucial role. A parapet bowl outlet is a specialized drainage component that ensures quick and controlled removal of rainwater from roofs where the drainpipe is routed through the building’s parapet.
This solution is particularly well-suited for roofs covered with bitumen or roofing membrane, where both functionality and watertightness are critical.
What Is a Parapet Bowl Outlet?
A parapet bowl outlet is a low-profile roof drain designed for installation in roof structures where the water is led out through the top of the wall (the parapet). The oval outlet pipe enables horizontal drainage through the wall - a solution often used in buildings with external drainage rather than downpipes running through the structure.
This type of outlet is a popular solution for both new builds and renovation projects where a low installation height, strong drainage capacity, and seamless integration with the roofing material are desired.
Ideal for bitumen and membrane roofs
The parapet bowl outlet is specifically engineered for use on flat roofs covered with bitumen or roofing membrane. Its low profile allows for tight integration near the roof surface without compromising either the visual expression or the technical performance. This enables effective and discreet drainage - with minimal impact on the roof's aesthetic.
The outlet is delivered with customized flashing solutions that ensure long-lasting watertightness between the roofing material and the drainage detail.
Advantages of the parapet bowl outlet
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Low installation height – ideal for slim roof structures
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Oval outlet pipe – easy routing through the parapet
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Suitable for both bitumen and roofing membranes
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Quick and efficient rainwater drainage
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High compatibility with existing roof structures
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Reliable operation – even during heavy rainfall
Technically refined and easy to install
The parapet bowl outlet is developed with a focus on ease of installation and long-term durability. It is supplied with prefabricated pipe routing and is easily adapted to both new and existing roof constructions. Thanks to the oval outlet pipe, a high flow capacity is achieved while ensuring a compact and tight wall penetration.
The outlet is typically made from durable and corrosion-resistant materials that withstand both mechanical stress and weather fluctuations. It can be combined with other components in the DrainHero system, enabling a fully system-based roof drainage solution.
Contact us for technical guidance
At JUAL, we’re ready to support contractors, consultants, and architects with expert advice and documentation. We assist you with sizing, product selection, and installation recommendations—ensuring a solution that delivers both functionally and aesthetically.
If you need a customized solution for a specific building, or you wish to optimize drainage on an existing roof, get in touch with us—we’re with you all the way from concept to completed solution.
