DrainHero safety outlet

Get insights into how you, by using JUAL's thoroughly tested emergency drainage products with proven drainage capacity, can meet the guidelines set by the Danish Building and Planning Agency for preventing damages and roof collapses in large halls and buildings.

Benefits with safety outlet

With JUAL safety outlet products on your roof, your construction project complies with new guidelines established to prevent severe damages and roof collapses caused by accumulated water.

Our roof outlets with water level rings have been tested according to EN1253-2, and our safety outlet products have undergone thorough testing at our own testing center.

This means that we can provide documentation of the drainage capacity and ensure an effective and safety solution, that meets the requirements for safety outlets in your construction or renovation project.

What is safety outlet?

When you install a JUAL safety outlet, you ensure that the roof is not overloaded with accumulated water, and that the water does not overflow from the roof edges.

The safety outlet operates independently of the regular drainage system and comes into action when there is water accumulation on the roof, that the regular drains cannot handle.

This can be due to blockages caused by leaves or ice, or because the drainage system is overwhelmed.

JUAL DrainHero brochure

Check out our new JUAL DrainHero brochure, where you can read all about emergency roof drainage.

Learn how JUAL's proven emergency drainage products and documented drainage capacity can help you comply with the Danish National Board of Housing and Planning's guidelines on preventing damage and roof collapse in large halls and buildings as well as SBI instructions.

Read it here

Worth knowing about safety outlet

  • The safety outlet ensures that the roof is not overloaded.
  • The safety outlet prevents water from overflowing from the roof edges.
  • Operates independently of the regular roof outlets in the drainage system.
  • Water from the safety outlet is carried directly to the outdoors and never into a sewer system.
  • Safety outlets can be interior drains or spouts that are directly installed through the wall crown.
  • Water from the safety outlet must not be discharged onto a lower-lying roof.
  • Safety outlets are placed close to the main roof drain.
  • Safety outlets are elevated above the roof covering, so that they only function when there is water accumulation on the roof.

We have the strength to help you succeed

At JUAL, we have been experts in drainage for generations. With the changing climate and more intense rainfall, we have realized the importance of complementing the conventional drainage systems with an emergency drainage system.

Through a significant investment in a state-of-the-art testing center, we have positioned ourselves at the forefront. We confidently consider ourselves experts in measuring and documenting drainage capacity.

Combined with our experience, capacity, and machinery equipped with special tools and robots, we have the strength to deliver complete safety outlet systems that meet the requirements outlined in the new guidelines from the Danish Building and Planning Agency.

Remember to incorporate safety outlet

Do you remember to incorporate safety outlets? When constructing new buildings, it is important for you as a consulting engineer or architect to consider safety outlets to comply with the recommendations in the new guidelines.

It is worth mentioning that the first roof outlet well should be placed no more than 7.2 meters from the gable, while the maximum distance to the next one should be 14.4 meters. As a rule, you should establish one safety outlet for every two regular drains.

Membrane-integrated products

With the installation of JUAL's safety outlet products on the roof, you not only comply with the new guidelines from the agency, but also gain a unique product that makes work on the roof easier for craftsmen.

At JUAL, we integrate roof membranes into our drainage products under controlled conditions at the factory. This ensures that the critical penetrations are watertight when the products leave the factory, allowing for simple and secure installation.

We integrate various qualities of roofing felt on stainless steel flanges, as well as PVC and TPO roof membranes on foil-coated steel plates. The attachment between the roof membrane and the flange is continuously tested according to applicable standards. The result is a 100 percent watertight solution.

Documented drainage


”At JUAL, we have invested in a state-of-the-art testing center that can test roof outlets according to EN1253. Here, we can measure the drainage capacity of different roof outlets in liters per second and determine the square meter area that each solution can handle.

With the documented drainage capacity at hand, it becomes easy for professionals like consulting engineers to accurately size the safety outlet system for the roof."

- Justinus Tróndargjógv, Product Developer, JUAL A/S

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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.