Calgary landmarks set standard for energy efficiency

PPG Flat Glass
November 03, 2014
By PPG Flat Glass
Nov. 3, 2014 - Two buildings in downtown Calgary, Alberta, Canada, constructed 34 years and less than a mile apart have two things in common: a legacy of environmental leadership, and shimmering facades fabricated with SOLARBAN architectural glasses by PPG Industries.

When it was constructed in 1979 with Solarban 550-8 TWINDOW glass, Gulf Canada Square was touted as the world’s most energy-efficient building. Since that time, the 20-story structure has earned awards for energy efficiency from Canada’s federal government and environmental groups such as Pollution Probe. Today, its 58-story neighbor, The Bow, is the most striking building in Calgary’s skyline. Opened in 2010, The Bow has earned LEED certification and a host of awards due in part to its use of next-generation Solarban z50 glass.
When it was introduced in 1964, first-generation Solarban glass was coated to reflect heat away from buildings to reduce energy and air-conditioning use. Fifty years later, next-generation products such as Solarban z50 glass feature highly advanced coatings that incorporate multiple ultra-thin layers of silver to block heat and transmit abundant natural light. The dual ability to block heat and transmit light enables architects to design buildings that demand less energy for cooling, heating and artificial light.

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