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cladding. Four solar chimneys combined with water- building will be “one of the most energy efficient
carrying transparent air ducts called “Waterwalls” office buildings in North America”.*
will provide tempered air within the building through By situating TRCA’s new administration offices
a raised floor plenum aligned within two large atria at the edge of the Black Creek ravine the building
that bring natural light deep within the building and will showcase construction adjacent to the ravine
enhance the movement of air.” system utilizing a very low impact landscape design
that limits water movement from the site and
A natural ventilation system with a solar wall of protects the ravine ecology. Further, the building
double glazing that combined with the Waterwalls siting will place staff and other stakeholders within
and operable windows will dramatically reduce the very system they are charged to protect.
energy use. A restorative green infrastructure
system, including a green roof, rainwater gardens, The project designers are ZAS Architects and
bioswales and permeable pavement is a part of Bucholz McEvoy Architects in Joint Venture.
the landscape design , as is an external shading The project construction manager is Eastern
system that reduces solar gain and therefore Construction. “The design team was chosen
the requirement for energy intensive cooling. because of their very clear understanding of the
“The project achieves a very low total energy use project brief and TRCA’s ambitions for the project,”
intensity (TEUI) modelled at 56. As designed the says Braithwaite. “Further, the team has a unique
AUG 2021 | BUSINESS ELITE CANADA 47
