Prevention of Velocity Effects - Erosion Corrosion and Cavitation

PROJECT: Fairmont Château Laurier
LOCATION: Ottawa, Ontario
APPLICATION: Roof Replacement
ARCHITECT/ENGINEER: John G. Cooke & Associates, Ottawa, Ontario
CONTRACTOR: Heather & Little Ltd., Ottawa, Ontario
METAL SUPPLIER: Canadian Brass and Copper, Concord, Ontario



DESCRIPTION:
One of the more notable and high-profile copper architectural projects in Canada is the on-going restoration of the Fairmont Château Laurier, which many Canadians immediately recognize due to its location across the Rideau Canal from Parliament Buildings. The restoration involves replacing the existing 90-year-old copper roof, in order to preserve the integrity of the Hotel well into the next century. The project will also result in a uniform roof appearance in a few years, which has not been the case over the last decade or so due to sporadic repairs of small areas at various times.

The restoration program has called for the work to be done in several stages to avoid interfering with the day-to-day operations of the hotel. This in turn required much of it to be undertaken during winter months, a time in the Nation’s Capital when roof construction is very difficult.

The original roof was laid over a light-weight concrete deck. However during the restoration, the roof structure was upgraded with the addition of rigid insulation, two membranes, and a plywood deck. The copper was installed using a standing seam configuration, and depending on the location, 16-oz. or 20-oz. sheet.

Heather & Little Ltd., has considerable experience with landmark projects of this type. Their work can be seen across North America, from the Parliament Buildings next to the Fairmont Château Laurier, to San Francisco City Hall, and the Library of Congress in Washington, to Old City Hall in Toronto. No doubt they will continue to be involved with some of Canada’s most outstanding copper projects in the future.


Adapted from Canadian Copper, No. 149.














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