The new headquarters of construction firm Collaborative Structures Limited (CSL) in Cambridge, Ont. has been awarded the first ever LEED-CS (Core and Shell) certification in Canada. The 24,000-sq.-ft. building received its official certification thanks to a variety of energy and water saving measures. Enermodal Engineering of Kitchener, Ont. was the LEED consultant on the project and Mighton Engineering, also based in Kitchener, provided the architectural design. CSL itself was the contractor.
LEED-CS is distinguished from LEED-NC (New Construction) by the fact that the “core and shell” of the building achieves LEED, but the interior design of future tenants may or may not. Although a LEED-CS building is an entirely new structure, the developer does not occupy the entire building and therefore cannot ensure LEED standards for the interior.
The CSL headquarters is a demonstration of environmental responsibility that offers significant operational savings, increased workplace productivity, and community sensitivity. The landlord-tenant agreement provides guidelines that cover topics such as light pollution, low-toxicity building materials and cleaning products, recycling, and construction waste management. The walls of the building are constructed using insulated concrete forms (ICF), which increases the insulation efficiency of the exterior. The mechanical design features high efficiency gas heating/cooling rooftop units and an energy recovery system.
The various features result in an annual energy savings of 41 per cent. This is in addition to the 56 per cent potable water savings from water conserving fixtures.