“The City of Saskatoon wanted an innovative program on
a site that they had attained,” said Gerry Garvin the Senior Contract Administrator in an interview with Steel Design magazine. “It is bounded on one side by the CN rail line and railyards, so it’s a fairly linear site and bus movement is paramount in moving vehicles out in the morning and midday and then bringing them back between crucial periods of bus service.” The city has proposed Phase II for this site – Garvin added that the project took roughly three years to complete. “We commenced in January 2014 and we turned the project over to the client in November of 2016.”
Steel was a main component in the construction materials for this project because it was a material that was versatile enough to use for the designs. “Steel allowed us to provide bigger bays for bus movement, it just makes it easier to move the buses around the facility,” said Garvin. “Then, with the increased height which was required both in the storage area and in the maintenance areas, steel was just a more viable product.”
So what makes the materials used for the operations centre so effective? Steel Design magazine reached out to Geoff Searle, the Western Canadian Sales and Marketing Manager for Metl-Span, the manufacturers of the insulated metal panels used for the projects exterior envelope.
“The main advantage to using the insulated panel, especially in the cold prairie climate, is efficiency,” said Searle. “You can put up a very thin panel that will give you an effective R-Value of over 22.”
Searle added that these 1,066.8mm (42-inch) wide, by 76.2mm (3”) thick, panels could be used for hoarding so the contractor can work throughout the year and when the building is done you still have the efficiency against the elements that it provides. The majority of the panels were 11.6m (38’) in length with some of them closer to 12.5m (41’).
For the exterior face of the insulated steel panels .61mm (.0239”) pre-painted G-90 galvanized steel was used and .45mm (.0179”) pre-painted G90 galvanized was used on the interior surface.
For the exterior coating two colours were used. The darker colour is the Brownstone and the lighter is Sandstone,” said Searle. He added that both had a Kynar finish as it helps protect the paint from fading due to elements such as UV rays.
The interior is Igloo White, which is a polyester finish and does not have the clear coat on it, as it is not needed.
“At the very front of the building, where the office is, we used an actual blue cladding system. The remainder of the building is all insulated panels.” said Searle. Searle is a big supporter for insulated panels, for many reasons, one being the environment. “Even though we are using polyurethane, which is obviously a petroleum-based insulation, the insulation value of that product is the best bang for your buck,” he said. “In other words you are getting an R-value of 7.3 per one inch of thickness. Metl-Span has been in business since 1968 and we have panels that were made in 1968 that are still standing on buildings today.”