 The production technology comes from German company Hightex GmbH, and the textile was produced in Bangkok by the Asia Membrane Co. Ltd.The process of opening or closing the roof takes about 20 minutes and it can only be performed at temperatures above 5 °C and not during rain (this was the reason for a one-day postponement of the football match against England on 16 October 2012).A drive system is used for stretching the membrane during the process of opening and for folding the material during the process of closing the roof.