Hertha Berlin play in the Olympiastadion in Berlin, which has a capacity of 74,649. All seating within the stadium is covered by the roof. The arena underwent renovations from 2000 to 2004, with the VIP section of the grandstand presenting a particular challenge. This 65-metre-long section represents just a small percentage of the stadium's total capacity, but required special care due to the Olympiastadion's status as a historic monument. During the renovations, 80,000m³ of soil was moved, with 15,000m³ of concrete and 1,800 tonnes of steel being brought in.
Roof structure a real highlight
The roof structure is an eye-catching feature of the stadium. At €26 million, it represented nearly 11 percent of the total renovation costs. The steel structure is covered by a tent-like roof made up of two membranes that measure 31,000m² each. The upper membrane is made up of 76 pieces. In total, 1,158 glass tiles (weighing 200kg each) were used to complete the roof.
The roof itself rests on 20 columns.The light and sound technology integrated into the roof construction is one-of-a-kind. A total of 312 anti-glare lights with an output of 2,000 watts each illuminate the pitch. Another 5,000 lights within the roof itself and the so-called ‘Ring of Fire’ allow for spectacular lighting effects. Within the roof, 19 high-end speakers provide spectators with high-quality sound.
As a final touch, the track around the field was painted blue to match the club colours.
Facts and figures
Renovation time: Four years
VIP area: 98 boxes, 15 sky boxes, 4,500 business seats
Big screens: Two, 140 m² and 60 m² respectively
Sound system: 150,000-watt total output from 19 high-end speakers
Roof construction: Two membranes measuring 31,000 m² each, located 45m above the pitch