Protan BlueProof®

We therefore need to establish a surface water system to tackle extreme weather. In built-up areas available space for this is limited. Besides, it is costly to dig up pavements and streets. The solution lies above us, where a Protan BlueProof® transforms the roof into a surface water reservoir that slowly attenuates torrential rain into the drainage system.

Protan BlueProof® attenuates the water

Effective water attenuation and secure surface water management are two important keywords to describe the technology behind Protan BlueProof®. On most ordinary roofs water drains away as quickly as possible. Protan BlueProof® makes it possible to slow this down, so that the water is gradually, and in a controlled way, sent down into the drainage system. This is known as water attenuation.

This means that not all the precipitation is sent to the ground at the same time, but that some of the water stays on the roof. In this way, we avoid overwhelming the drainage system, which leads to flooding and flood damage.

Four reasons to choose Protan BlueProof®

• It is safe. The system is SINTEF-approved, developed with high competence, long experience and tried and trusted roofing traditions.
• It is sustainable. It is the most climate friendly system for water attenuation.
• It is cost-effective. BlueProof® is the most economical system as compared with other water attenuation systems.
• It saves space. The system frees up space that would otherwise be used for surface water management.

How Protan BlueProof® works

Heavy rainfall puts pressure on drainage systems
A flat roof of 1,000 m² exposed to 50 mm of rain per hour generates:

• 50 m³ of water per hour
  → This can quickly overload the drainage system

Flat roofs are designed to handle weight by temporarily holding back water:

• Load increases by only ~50 kg/m²

• This is just 20% of typical roof capacity

In the Nordics, flat roofs can often handle:

• 300 kg/m² (equivalent to 300 mm of rainfall)

BlueProof® delays and controls runoff Instead of sending all water directly to drainage:

• Water is attenuated on the roof

• The same 50 m³ is released gradually over ~24 hours

Result

• Reduced pressure on drainage systems

• Lower risk of urban flooding

• Smarter use of existing roof capacity

Protan offers security and competence

Protan offers all the necessary training for the installation of BlueProof® and we are on site with our inhouse technicians for the first projects

Before the roof is installed, Protan employees and the roofing contractors will have been through the obligatory Takskole 1 (Roofing School 1). For BlueProof® there is an additional section of the course about installation and functions related to this new technology.

In order for the roofing system to achieve SINTEF-approval, utførende ledd has to be qualified. There is no specific requirement for individual training, but Protan offers support throughout the entire project to ensure competence.

At the end of the project, we carry out function testing together with the roofing contractors. By choosing Protan BlueProof® you get a blue roof that is equipped to handle the weather of today and the future.