Gibbs Gage Architects, Architect of Record; Kendall Heaton Architects, Executive; Pickard Chilton Architects, Design
78,034 m2 (840,000 ft²)
Exterior Enclosure and Roof Consultant
Calgary’s Eighth Avenue Place, West Tower, is a 45-storey commercial office tower built atop an existing three-storey podium. When completed in 2014, this tower will become the smaller sister building to the existing 52-storey East Tower at Eighth Avenue Place. Like the East Tower, which was completed in 2012, the West Tower aspires to LEED Platinum certification.
Clad predominantly in unitized aluminum and glass curtain wall, the West Tower will feature dramatic interconnecting slopes and angle changes both in plan and in elevation. Its reflective glass, accented by a decorative vertical fin on each mullion, combines with the unique apex to the building that will make it stand out on Calgary’s skyline.
Challenge: The dynamic shape and angles in the design, combined with the height of the building, pose significant challenges in terms of energy performance and snow/water shed.
Solution: We designed a curtain wall and overhead glass assembly that provides the required building envelope performance. We also developed sophisticated snow melting and collection systems. These systems will use a unique hot water deluge system to mitigate snow collection and subsequent ice formation. To reduce the amount of snow and rainwater coming off the building, the curtain wall includes integral heat-traced gutters that drain through the curtain wall to the interior storm drainage system.