The retrofit scope included a new exterior enclosure, with thermal and air-barrier upgrades to the wall systems, new modern metal-panel cladding, and high-performance triple-glazed fiberglass windows to reduce condensation risk, unwanted solar heat gain, and improve acoustics. The mechanical scope included replacing the conventional gas boilers for heating and hot water with a gas absorption heat pump system to improve performance and reduce natural gas use. Individual units were provided via wall heat-recovery ventilators to increase fresh-air exchange directly into the suites, improving ventilation.
RDH served as the prime consultant, leading the integrated design team and delivering a holistic retrofit approach that prioritized system interactions and overall building performance. The project was completed while the building was occupied to minimize disruption and allow tenants to remain in place, requiring careful coordination with residents, the owner, and trades to support construction and maintain operations.
The project targets a 60%+ reduction in operational emissions and total energy savings and is currently undergoing an intensive post-construction measurement-and-verification phase to confirm these outcomes in practice. This project serves as a valuable case study for the industry for showcasing whole-building retrofit strategies, costs, and implementation considerations.
