Royal Military College of Canada - Window Rehabilitation

This project involved the conservation of original wood windows, doors, and masonry surrounds at three heritage buildings at Canadian Forces Base Kingston: De Noyan Block (1827), Cavalry House (1908), and Ross Block (1936). Each of the buildings are a Classified or Recognized Federal Heritage Building, and in all instances, the double-hung windows are key heritage character-defining elements. The project aimed to improve their performance while preserving their heritage value.

EVOQ provided full architectural and heritage conservation services, from investigation and design through contract administration. A full-scale prototype phase tested multiple conservation approaches to evaluate performance and inform the final strategy. The selected solution incorporated thin vacuum-insulated glazing, enabling the complete retention of the original wood sashes while significantly enhancing thermal efficiency. The windows were restored to be fully operable and were fitted with insect screens. All work was completed in accordance with Parks Canada’s Standards and Guidelines and received approval from the Federal Heritage Buildings Review Office.