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Date 05/11/2011

Ductal® Ultra-High Performance Concrete at the Rotman School of Management Expansion Project / University of Toronto

Toronto, ON
Lafarge Canada Inc.



The Rotman School of Management at the University of Toronto has grown substantially in the last twelve years.  Consequently, this innovative business school has outgrown its space (downtown Toronto), resulting in a $91.8 million expansion project that includes construction of a new 161,500 s.f. building, clad with Lafarge's Ultra-High Performance Concrete, "Ductal". The new building more than doubles the size of the original School and adds to the emergence of a Rotman Campus that comprises six locations - all within walking distance of the main building.


According to the project architects, KPMB (Toronto), "the design of the new building is a direct expression of Rotman's core mission to promote the power of creativity, innovation and integrative thinking in 21st century business education.  The design responds to different scales and conditions presented by the surrounding context. In this case, it mitigates between a historic 19th century residence and the massive scale of the Robarts Library. It carefully maintains views and minimizes shadow impact on one of the city's architectural treasures, Massey College, to the east.  The overall concept advances the School's long term sustainability and business strategy, and will meet LEED Silver requirements."


The building's exterior curtain wall system, to be completed this summer, consists of 350+ dark gray precast Ductal panels just 30 mm thick.  Produced by Armtec (Pre-Con) of Brampton, Ontario, these unique, ultra-thin panels vary from 0.5 m to 1.0 m wide x 3.5 m to 5.3 m high.  In addition to the cladding, approximately 110 Ductal panels (19 mm thick) will be used to create an interior wall; an attractive and functional design feature that complements building's exterior.


Ductal is highly moldable and well suited for innovative precast solutions. With the absence of rebar, panels can be much thinner and lighter than conventional concrete panels - and may be produced in a range of textures, colors and complex shapes. The material's superior durability characteristics are due to low porosity from a combination of fine and small raw materials selected for their optimized size distribution and chemical characteristics.  Its matrix is extremely dense, with qualities similar to natural stone.  These superior durability and strength properties make Ductal an exceptional material choice for building envelopes and architectural elements that are sustainable and extremely durable.


Expected to open in 2012, the new structure will be fully integrated with the current building and will house new hi-tech classrooms, flexible study space, and a 400-seat event facility. The Expansion will also be home to the Desautels Centre for Integrative Thinking, the Martin Prosperity Institute and the School's other prestigious research centres.






Lisa Birnie, Marketing & Communications Manager, Ductal®

Lafarge North America

Phone: 403-292-9246 or 403-650-1382

The Rotman School of Management at the University of Toronto


Lafarge S.A., together with its subsidiaries (the "Lafarge Group" or the "Group"), is the world leader in building materials, with top-ranking positions in all of its businesses: Cement, Aggregates & Concrete and Gypsum. With 76,000 employees in 78 countries, the Group posted sales of 16.2 billion Euros in 2010.  Lafarge North America Inc. and its subsidiaries, including Lafarge Canada Inc., ("Lafarge"), are Lafarge Group companies, and together constitute the largest diversified supplier of construction materials in the United States and Canada. 


The Lafarge Group entered the global "Dow Jones Sustainability Index" in 2010 in recognition of its sustainable development actions. The Group places innovation at the heart of its priorities, working for sustainable construction and architectural creativity.  


About Rotman School of Management

The Rotman School of Management at the University of Toronto is redesigning business education for the 21st century with a curriculum based on Integrative Thinking. Located in the world's most diverse city, the Rotman School fosters a new way to think that enables the design of creative business solutions.  The School is currently raising $200 million to ensure Canada has the world-class business school it deserves.  For more information, go to


About KPMB

KPMB, founded in 1987 by Bruce Kuwabara, Thomas Payne, Marianne McKenna, and Shirley Blumberg, is an 85+ person practice based in Toronto. Well known for their consistency of architectural excellence through a diversity of project experience, the firm holds a strong reputation for its high design and production standards. The Rotman School Expansion Project Team consists of: Bruce Kuwabara (design partner), Marianne McKenna (partner-in-charge), Luigi LaRocca (senior associate-in-charge), Paulo Rocha (project architect), Bruno Weber, John Peterson, Myriam Tawadros, Janice Wong, Richard Wong, Victor Garzon, Lilly Liaukus, Bryn Marler, Rachel Stecker and, Maryam Karimi.  For more information, go to


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