The highly sophisticated Kalzip roofing and cladding system, produced by Corus Building Systems, has been specified for important buildings in Qatar over the past years, thanks to its flexibility and ability to be precisely adapted to the requirements of any type of building,

“With the growing demand for quality roofing systems in Qatar’s booming construction market, Corus Building Systems has installed more than 200,000 sq m of Kalzip roofing and cladding systems in the region,” says a Dubai-based spokesman for the company.
The proven Kalzip system, he says, offers a wide range of shapes and forms and an extensive range of accessories that match important requirements such as lightness, flexibility, weather-tightness while being corrosion-proof and featuring a stunning design and appearance at the same time.
Corus Building Systems, said to be the largest group of its kind in Europe, provides metal-based building envelopes and flooring systems featuring a wide range of profile cladding, decking, composite panel and light steel framing solutions.
Corus aims to offer Qatar its most recent innovations in the Kalzip system, and is now poised to launch on the market its photovoltaic system Kalzip AluPlusSolar, which is the first such system to enable roof-integrated renewable energy production while offering a wide scope for creativity in executing challenging architectural projects.
 “The solar laminates are flexible and extremely durable. Depending on the particular roof design, they are permanently bonded to straight, convex or concave Kalzip aluminium profiled sheets. Typical shapes such as pent and barrel roofs as well as individual designs are possible with Kalzip AluPlusSolar. The combination of thin-film solar cells with the characteristics of Kalzip profiled sheets guarantees the architects and planners of photovoltaic systems a truly integrated solar solution, which optimises both roof design and energy generation,” says the spokesman.

Khalifa Stadium
One of the iconic Kalzip projects in Qatar is the Khalifa International Stadium, which was the main venue for the 15th Asian Games at Doha in 2006. It forms part of the Doha Sports City complex (officially renamed Aspire Zone), which also includes Aspire Academy, Hamad Aquatic Centre, and the Aspire Tower.
Elaborating on the use of the Kalzip system on this prestigious landmark, he says: “The stadium was originally opened in 1976, but was fully renovated and expanded prior to the Asian Games in order to increase its capacity from 20,000 to 50,000. A roof was then built with Kalzip on the western side of the stadium, along with a large arch on the eastern side, which was used as a platform for the launch of fireworks during the 2006 Asian Games opening ceremony.
“To cover the roof’s wide spans, the tapered Kalzip 50 profile was used as a weather-tight layer, where the width of the panel at the second end reached values ranging from 230 mm to 550 mm. Both tapered and curved profiles were produced on site.
“Corus Building Systems offered an integrated solution and consistent technical consultation at every stage of the project. Indeed, when it comes to sophisticated buildings, Kalzip’s technical expertise makes the difference – that’s why architects such as Zaha Hadid, Richard Rogers, Mitsuru Senda, among many others, use Kalzip profiled sheets for their spectacular and contemporary architectural achievements.”
“Designed by the experienced sports centre planner Roger Tallibert, the Khalifa International Stadium presents Doha to the world in a new and dynamic way and certifies Kalzip as an innovative and highly competent solution vital to the success of any project,” he adds.
The system, installed by Arabian Profile Company, has a stucco-embossed surface and is covered with metallic blue Reynobond composite panels.

Long history in Qatar
The company’s ongoing project is the multipurpose sports and assembly halls at schools in Doha schools, which has involved several jobs over the past years, some of which are still ongoing. Kalzip 65/400 straight, with a thickness of 0.8 mm has been installed for the schools’ roofs by Al Daicel and Big Engineering installers, both based in Qatar, involving a total area of 61,500 sq m.
Since 1982, Kalzip has been installed in a wide range of projects in Qatar, ranging from public buildings to stadiums, exhibition halls to sports and leisure centres. These include the Khalifa Sports Stadium (where 6,500 sq m of Kalzip was installed); the conference hall at Doha Sheraton (4,120 sq m); Doha City Centre (30,000 sq m); schools in Doha (9,880 sq m); Al Rayyan and Al Ittihad indoor stadiums (10,400 sq m); College of Technology (4,788 sq m); Khalifa Sports City – International Stadium (62,000 sq m); government schools, (15,806 sq m); Villagio Dome (720 sq m); multipurpose sports and assembly halls at Doha Schools (61,500 sq m).