Morrison Hershfield’s investigation at Etobicoke and Scarborough (four-pad complexes), revealed design deficiencies with the thermal and vapour barrier design of the roofs and poor HVAC control systems.  Simply removing and replacing the roof systems was not considered, as construction costs and loss of revenue (i.e. ice rental) were not options for the Client.

The modifications proposed by Morrison Hershfield generally cost less than $60,000 per complex, and caused minimal disruption to normal operations.  By minimizing construction costs and extending the service life of the roof systems, the Client was able to undertake various other upgrades to maintain the Canlan standard throughout the three complexes.