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Sensitive Upgrade of Historic Roof and Wall Assemblies
Sensitive Upgrade of Historic Roof Assembly, Supreme Court of Canada, Morrison Hershfield

In 1949, the Supreme Court of Canada became Canada’s highest court of appeal.  Located in Ottawa, ON, it is a designated Heritage Building erected during World War II.  It houses three courts that are open to the public.  A project was undertaken to correct the cause and consequence of water damage on the upper floors that could be traced to both water penetration and condensation collection.

Morrison Hershfield was responsible for the design and construction review of the roof upgrade and repair for this project.  As well, recommendations were provided to the heritage architect responsible for intervention related to walls and windows.  Morrison Hershfield brought the tools of modern building science to the sensitive upgrade of historic roof assemblies.

The project included:

  • Condition survey and assessment of the entire building envelope
  • Detailed investigation of the copper roof and exterior wall assemblies and supporting structure
  • Preparation of design documents for the rehabilitation of the roof and exterior walls, recognizing changing interior environmental conditions and the building’s heritage designation
  • Preparation of design documents for the rehabilitation of the exterior walls above the third floor level
  • Field review and performance testing services during the rehabilitation of the walls and roof
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