Radius Track Simplifies Curved Roof Framing Installation

Radius Track Corporation scored the pre-curved roof sub-framing contracts for 3 of the new transit stations in the Toronto Transit Commission extension. York University Station, one of the three, features a 1,140 m2 inverted roof of flowing compound curves ending in an undulating perimeter gutter system. Roofing contractor Bothwell-Accurate contracted Radius Track to provide the light-gauge system that sets the geometry for the Kalzip standing seam metal roof.

 

While the Bothwell-Accurate team installed the sheathing board and 2-ply modified bituminous roof, RTC designed, engineered, and fabricated the framing needed to install the custom curved Kalzip standing seam metal roof over the 2-ply system. Radius Track and Kalzip coordinated their 3D fabrication models to assure both systems would fit together perfectly.

 

"This is the first time Bothwell-Accurate used pre-fabricated light-gauge framing components for a roof project," said Trevor McGrath, Estimating Manager for Bothwell-Accurate. "We did not have to worry about the geometry and setting out points. Radius Track provided a very clear layout system that we used to set everything - from the curved hat to clip angles, the curved frames and finally the Kalzip standing seam metal roof. It all fit and was quite amazing."

 

PROJECT TEAM:

Design Architect: Foster Partners

Architect of Record: Adamson Associates

General Contractor: Ellis Don

Roofing Contractor: Bothwell-Accurate

Architectural Sales Rep: Exterior Technologies Group

Pre-Curved Sub Framing: Radius Track Corporation

 

READ MORE ABOUT THE PROJECT AND SEE PHOTOS HERE.