Case Study

360° Gutter of the Klimahaus

  • Location

    Bremerhaven

  • System
  • Completion

    2018

  • Scope

    232 running meters of gutter = 418 m², 126 running meters of expansion joints = 70 pieces

  • Design

    DADEGO Roofing Cooperative Bremen eG, Bremen

360° view of the gutter at the Klimahaus in Bremerhaven.

Every year, half a million international visitors to the Klimahaus Bremerhaven learn about the Earth’s various climate zones. How extreme weather conditions can affect a building’s envelope became an unintended issue for the operator of this scientific exhibition center: The salty North Sea air had compromised the functionality of the roof membrane. As a result, water seeped in through the surrounding aluminum-lined gutter and into the insulation, causing damage even in the exhibition halls. The building owner, Bremerhavener Entwicklungsgesellschaft Alter-/Neuer Hafen mbH & Co. KG (BEAN for short), therefore commissioned DADEGO Dachdecker-Genossenschaft Bremen eG to immediately repair the walkable gutter. The requirement was for a weather-resistant product that adheres to the metal substrate and provides long-term protection for the building structure. The building owner, the installer, and liquid polymer manufacturer Triflex consulted on a suitable solution and determined that the fabric-reinforced waterproofing system Triflex ProDetail met the specified requirements.
A view of the harbor area in Bremerhaven, featuring a harbor basin, modern buildings, and wharves under a cloudy sky.

Requirements for the Renovation

  • Reliable protection against moisture ingress
  • Rapid restoration (within a few hours)
  • Seamless and joint-free waterproofing, even for complex shapes and details
  • Highly resistant to chemical, mechanical, and thermal influences
  • Application to an existing substrate without demolition
  • Elastic material
  • Processing can be done in sections
Contractors are installing a waterproofing membrane along the edge where a sheet-metal roof meets the roof structure.