National Stadium, Singapore

Kallang Stadium is a stadium under construction in Kallang, Singapore. It is due to open in 2014 for the Singapore Southeast Asian Games and will have a capacity of 55,000 spectators. It will be the new home of Singapore national football team. The site is situated at the old National Stadium, which was closed in 2007 and demolished in 2010.

The new national stadium will be a part of the Singapore Sports Hub, which consist of the Singapore Indoor Stadium, an Aquatic Centre, as well as a Multi-Purpose Indoor Arena. The stadium will also feature a retractable roof. Once completed, the stadium would have the world's largest dome roof.

Construction
Construction work for the sports hub started in 2010 due to the delays caused by the 2008 financial crisis and soaring construction costs. By September 2011, the pilling and the foundation of the stadium was completed and construction on the steelwork of the stadium fixed roof started. On July 2013, the installation of the stadium final primary steel ‘runway truss’ for the roof was completed marking the completion of the steelwork on the National Stadium’s fixed roof in preparation for installation of the retractable roof. The stadium is set to be completed in April 2014.

Features
The new national stadium is custom built for multi-sports use. The stadium is able to host football, rugby, cricket and other athletics events in one venue. With configurable spectator tiers, the lower spectator tiers can be moved 12.5m forward to provide optimum spectator viewing distances. The stadium also features a retractable roof which takes 25 minutes to open or close. The roof is made out of a lightweight material called ETFE, which is weather-resistant and blocks the sun's heat giving shade to spectators during the day. An energy efficient cooling system is also designed to deliver cooled air to every seat in the stadium while using less than 15 per cent of energy as compared to a conventional air-conditioned stadium. At night, the retractable roof doubles as a giant projector screen on both sides, which can display images such as the Singapore Flag during the National Day Parade.

Currently it will be used for the future National Day Parade 2015.