Angular Roof Outlet

The angular outlet is used on flat roofs with roofing felt or membrane where a vertical drainage point needs to be connected to a horizontal drainage pipe. The outlet ensures a watertight connection between the roof surface and the drain pipe.

Efficient and watertight drainage on flat roofs

In modern construction, correct and efficient drainage is a key factor in extending the lifespan of the roof and protecting the building. This is especially true for flat roofs, where rainwater does not drain away naturally, making it essential to choose components that ensure high performance and watertightness.

One of the most versatile solutions in this context is an Angular Roof Outlet – a specially designed drainage component that connects a vertical drainage point to a horizontal outlet pipe.

What Is a Angular Roof Outlet

A Angular Roof Outlet is typically used on flat roofs covered with bitumen or synthetic membrane, where it is necessary to transfer rainwater from the roof surface to a horizontally routed drainage system. Instead of the traditional vertical outlet, the angled drain allows for a 90° redirection of the water flow—e.g., through a parapet or into internal piping.

This makes the angled outlet particularly suitable for buildings where space constraints or structural elements prevent vertical drainage directly through the roof construction.

Watertight and secure connection

The primary function of an angled roof drain is to create a watertight and durable connection between the roof membrane (bitumen or synthetic) and the connected drainpipe.

The outlet is designed with a focus on sealing and longevity, eliminating the risk of leaks or failure—even after years of exposure to wind, water, and temperature fluctuations.

The outlet is typically integrated with flashing materials matching the roof covering, ensuring optimal adhesion and material compatibility.

Technical reliability and high-quality design

At JUAL, all our roof drains are manufactured from robust materials capable of withstanding harsh Nordic climates - and our angular roof outlet is no exception. It is engineered for durability, ease of installation, and full compatibility with our broader drainage systems, including the DrainHero system.

Depending on project requirements, the drain is available in custom dimensions and connections, perfectly suited for pipe types such as Ø75 or Ø110. It is also available with flashing for both bitumen and membrane roofs, depending on the specific roof build-up.

Application areas

The angular roof outlet is particularly well-suited for:

  • Flat roofs on commercial and industrial buildings

  • Buildings with external or horizontal drainage

  • Multi-storey buildings where pipes pass through parapets or façades

  • Renovation projects with modified drainage requirements

Thanks to its flexible design, the angled drain can be integrated into both new and existing roof constructions—and with customizable dimensions, it can be easily combined with existing pipe systems.

Guidance and documentation

Choosing a angular roof outlet from JUAL means choosing more than just a product - it’s a complete solution. Our technical team is ready to assist you with everything from product selection and sizing to installation guidance and documentation.

We provide expert advice to contractors, architects, and consulting engineers who require a reliable, documented, and functional roof drainage solution.

JUAL Group companies have joined forces

Our four operating companies JUAL A/S, Perform A/S, Bygtjek A/S and Fixnordic A/S have now merged into one entity: JUAL.