After carefully studying various structural and logistical factors, we designed a second-storey addition that seamlessly integrates with the existing high school and introduced a new entrance and stairway to breathe new life into an older brick edifice.
This educational expansion project adds a 13,000-sf second floor to an existing high school to accommodate over 200 Grade 7 and 8 students. The program includes nine classrooms that integrate advanced teaching and learning technologies, complemented by wide corridors designed to foster social interactions. These corridors feature built-in seating areas strategically placed between banks of lockers, creating inviting spaces for student engagement, while a generous three-dimensional clerestory window floods the corridor with natural light.
Due to the congested nature of the site, we first undertook a feasibility study to explore several potential options for expanding the facility above different sections of the existing building. Our comprehensive study explored the structural limitations of the existing building and soil, access to the addition from the rest of the school, phasing and construction logistics, and the estimated construction costs. To accomplish the construction, we leveraged staff areas in the current building to achieve a phasing strategy that minimized classroom disruptions
The final design responds to existing structural conditions and optimizes circulation. Because the addition sits above and adjacent to existing structures that were not originally intended to support a second storey, we pursued specific structural and material strategies to minimize cost and maximize efficiency. The second floor combines precast concrete with existing masonry to reduce the thickness of the structure and provide fire resistance. The second floor roof is supported by a largely separate steel structure to allow for long spans and maximize the flexibility of the column grid while minimizing further load on the existing ground floor structure and minimizing underpinning.