Sir John A. Macdonald Building

Overhead Skylight + Glass Fin Façade | Ottawa, ON, Canada

The Sir John A. Macdonald Building (144 Wellington), one of Canada’s principal heritage structures, was originally constructed in 1932 as the Bank of Montreal. The federally recognized heritage landmark was transformed in 2015 to serve as Canada’s new ceremonial hall for events of state to include parliamentary business and reception functions for the House of Commons. The new design sought to incorporate the quality and importance of the existing structure, while reinterpreting the building composition to allow natural light to penetrate the historic interior, adding grandeur, vibrancy and unobstructed views of Parliament Hill. The restoration of the building’s façade utilized Sentech’s VetraFin G-Series system, using full-height, insulated glass panels supported by full-height triple laminated vertical glass fins. Portions of the wall also combined our VetraFin system with our VetraPatch Connection Series in a bronze coating to discretely integrate with the aesthetic of the surrounding heritage elements. The most striking architectural feature of the project is the contemporary, all-glass atrium skylight that utilized Sentech’s overhead systems, consisting of insulated glass units that span between the existing building structure and connected with bronze-clad steel brackets. The atrium serves as both a visual and physical connection between the old and the new, incorporating daylight and ventilation strategies that result in a striking structure that floods the historic structure with natural light and exquisite transparency.