*Project led by Barry Charnish and Michael Lembke while employed at a previous firm.
MMC Architecture; Eleven Eleven Architecture
City of Calgary
9290 m2 (80,000 ft²) approximately of curtain wall, sloped glazing and skylight
Building Envelope and Structural Engineering Consultant
Devonian Gardens, downtown Calgary’s only indoor public park, features thousands of plant species plus water features and fountains. Located on the fourth floor above the CORE shopping mall, the revitalized gardens include a new curtain wall, structural steel mezzanine, sloped glazing, skylights and the complete re-construction of interior gardens spaces.
We designed pathways between planter boxes and water features as a raised floor system on cold-formed metal stud, which supports tile and timber decking flooring. The existing floor system supported our designs so structural reinforcing was not needed.
Challenge: The recladding project included the removal and replacement of more than 80,000 ft2 of vertical curtain wall, sloped glazing, and skylights around the gardens and below the Home and Dome towers. We had to ensure the new cladding would meet the city’s requirements for funding and payback.
Solution: Before starting the recladding and interior renovation design work, we oversaw a feasibility and payback analysis as part of a full building energy analysis in order to estimate the energy costs of the existing cladding versus the new cladding. Given the high humidity within the space and the poor performance of the existing glazing, we demonstrated the benefits of a new cladding system in terms of better interior climatic control and condensation resistance. We also analyzed the existing steel structure to determine whether it would support the load of the new glazing systems. Our analysis allowed the Calgary City Council to approve the required funding and the project came to fruition.