Case Study

The new Bremen Weser-Stadion: A Home Match for the Future The Real Football Feeling. It took almost three years to reconstruct the Bremen Weser-Stadion into a pure football arena. Fans are now getting an absolutely first-hand football experience. The whole spectator area including the curved fan stands has been moved close to the pitch, allowing for an even better view of play. However, in the new Bremen Weser-Stadion, the winner is not only football, but also the environment. Following the slogan “A Home Match for the Future”, a novel energy concept was realised. The core of this energy concept...

Reconstruction of the Bremen Weser-Stadion within two halves and an extra time GmbH in Westerstede partnered in the “Consortium PV Roof Weser-Stadion”. With a view to coordinating and executing all electrotechnical works, the Consortium also contracted an electrical installation company. Alternating between playing and building the project, which was divided into several construction phases, began in 2008 with the dismantling and subsequent rebuilding of the northern and southern stands (1st construction phase). Naturally, 3th construction phase: Rebuilding the western curved stand 4th construction...

The new roof of the Bremen Weser-Stadion with EVALON® Solar. Completely new roofs As a first step, on all new-built roof areas an even and load-distributing substrate had to be achieved for the further roof build-up. To this end, steel workers installed plain sheet metal on the trapezoidal sheet profiles and fixed them with screws through the corrugation ridges. Subsequently, roofers applied 30 mm thick refurbishment insulation boards. These highly compressed, extremely hard and thin roof insulation boards consisting of incombustible mineral wool, on ▴ Dismantling the old roof build-up the one...

Flat roof and solar technology: If there’s one thing we know, it‘s both. Multi-purpose waterproofing membrane A special advantage of the multi-purpose roof waterproofing is the convincing combination of the proven EVALON® waterproofing membranes and flexible PV modules. Like any standard waterproofing membrane, EVALON® Solar is installed on the roof directly from the roll. The flexible and light-weight UNI-Solar® PV modules are all-side weatherproof in a transparent polymer encapsulation and full-size laminated to the synthetic waterproofing membranes. The patented connection system allows for...

Rough going not only inside the Bremen Weser-Stadion ▴ Exposed location directly near the river Weser The location of the stadium is another the roof waterproofing and the power- challenge, as the football arena with its generating waterproofing membranes Visitors of the Bremen Weser-Stadion will 27 metre high roof lies in close vicinity to irrespective of the corrugation ridges. For now experience sports and energy at first the river Weser. The area of Bremen is lo- mechanical fastening in the ­ embrane m hand: The state-of-the-art photovoltaic cated near the coast and thus in wind zone seam...

A Home Match for the Future: A win-win situation for both football and the environment. About 10,470 m² of the stadium roof area of approximately 18,000 m² are covered with the world‘s first powergenerating waterproofing membrane EVALON® Solar. This amounts to a total power yield of around 511 kWp, i. e. 156 kWp from the curved stands each, 103 kWp from the southern stand and 96 kWp from the northern stand. Together with the other PV systems installed at the stadium, the total installation area amounts to almost the size of two football pitches annually generating up to 1.2 MW of electric power....

Project data alwitra Flachdach-Systeme in Trier, Germany, is a supplier of complete Roof-integrated PV system with a total capacity of 511 kWp Roof of the eastern curved stand: 156 kWp Construction time: Roof of the western curved stand: 156 kWp for more than four decades. In addi- Roof area m²: approx. Roof of the southern stand: Solar area m²: approx. tion, alwitra ranks among the leading Roof of the northern stand: flat roof systems operating globally experts for designing and imple- Number of EVALON Solar ® menting state-of-the-art photovoltaic systems on flat and low slope roofs. The comprehensive...