were aspects that were missing in its previous air-supported roof incarnation, as well as the Montreal Olympic Stadium and the Rogers Centre (formerly SkyDome). The artificial turf installed between September 2011 and April 2015 drew criticism, notably its lacklustre characteristics for playing professional level soccer. A new artificial turf was installed in May 2015, prior to the FIFA Women's World Cup Canada 2015. The total cost of the turf upgrade was $1.327 million, with Canada Soccer and Rugby Canada contributing $500,000 CDN to the project. Liam Middleton, Canada's Rugby Sevens coach, stated that the new surface was "better than some natural grass surfaces they've played on." Summary of renovations New retractable roof is the largest cable supported retractable roof in the world. Revolving doors replaced with clear glass doors, which allows the stadium to be accessed much more easily. Old brown glass around building replaced with light green glass which lets more light in and makes stadium brighter. BC Lions locker room completely expanded and refurbished: Old lockers were taken out, sanded down, refinished, and put back in. New cubicles were also put in with individual lighting for players. Locker room also sports a new floor called "sport floor". New synthetic turf, called Polytan LigaTurf RS+, was installed as the new playing surface. Turf has a thick shock pad underneath the turf and special eco-friendly BionPro infill. A centre-hung high-definition scoreboard measuring . Around the stadium is a new electronic ribbon board, with a circumference of . Added 1,140 new HDTV screens. Screens work through a system called Stadium Vision. Each screen runs on a separate video source, allowing menu boards at concourse concession stands to show game updates to fans as they order from concession stands. All concourses widened and refurbished. Added 140 additional portable concession stands. Storage of food and supplies will be in concession stands. 50 fully refurbished private suites and 1,300 newly refurbished premium Club Seats. Wheel chair seating now at every price point and level of the stadium. New upgraded washrooms, and access ramps with new lighting. New state of the art sound system. New wider seats: seats or wide with cup holders on every seat. New sport lighting in stadium: 10% of lighting replaced by hot strip lighting, which gives instant on and off. Post-renovation The opening and closing ceremonies of the XXI Olympic Winter Games and the opening ceremonies of the X Paralympic