Regent College Library
Due to the underground location, the expanded library will not increase the size of the College’s ecological footprint.
In order to accommodate the student population growth, Regent College is undertaking a large scale expansion project, starting with the library. At more than 2.5 times in size, the new $9.3M library includes space for a growing collection of learning materials and additional study space for students. Project goals were shaped by a strong sustainable focus, reducing greenhouse gas emissions and operational costs.
Cobalt provided mechanical engineering services for the design of the library with targets set to meet LEED® Gold Certification, if certification was pursued. Key design features included locating the high thermal mass building completely underground to take advantage of stable ground temperatures. The existing aquifer system from the neighbouring building, was used to provide free cooling for the library. Once the water has finished cooling the 3-storey building, it is then used to cool the library using a heat exchanger.
This project took the Net-Zero design approach originally intending to use solar panels to produce hot water for the heating system . A radiant heating and cooling slab system was selected to provide optimal thermal comfort. The aquifer provides a source of free cooling, while a high efficiency boiler provides the heating source. To create a healthy learning environment, a displacement ventilation system was installed.
Using 100% fresh outdoor air, this system takes advantage of the natural stack effect using an above ground wind tower equipped with photovoltaics for lighting. Skylights were combined with reflective pools to maximize daylighting. This progressive underground library serves as an excellent example of sustainability in action and educates students, staff, and visitors about the importance of making more sustainable choices.
