Features

Twist and Shout: Metal creates an iconic building at Edmonton International Airport

April 19, 2013

Pilots and passengers landing at Edmonton International Airport will be treated to an architectural achievement not normally granted to utilitarian buildings such as air traffic control towers. The new tower, already an iconic structure on the horizon, features a giant ribbon-like metal ‘wrap’ that twists and turns around the building.

Garage Traffic Toppings: A tale of two systems

April 16, 2013

Traffic topping systems for suspended concrete slabs found in parking garages come in two basic types: ‘thin’ and ‘thick.’ (While these are unofficial ‘categories,’ they are nonetheless fitting.) This article reviews both variations, outlining the physical properties and noting differences in terms of performance, design, cost, lifecycle, and maintenance.

A construction worker in a yellow hard hat and harness climbs wooden beams, focusing on safety and the task at hand.

Strengthening oversight and safety in Ontario’s new home construction sector

The Devil is in the Details: Maximizing continuous insulation in commercial construction

April 11, 2013

In commercial construction, continuous insulation (ci) is no longer the exception—it has become the norm. Both the National Energy Code for Buildings (NECB) and the National Building Code of Canada (NBC), along with green building programs, have set higher efficiency requirements. At the same time, the industry is increasingly recognizing the building enclosure’s role in overall operational performance.

Mould: A building’s biological bomb

April 10, 2013

The design/construction industry’s efforts to save energy may have also inadvertently created a biological time-bomb. Leaps have been made in tightening buildings and making them more energy-efficient, but pollutants—such as moisture, volatile organic compounds (VOCs), and other gases—can build up to alarming concentrations. Both homeowner and facility managers are offered the allure of energy-saving design with tighter windows and doors, high-efficiency furnaces, and closed chimney ventilation. Although friendly on energy bills, owners are not always fully aware of potential health dangers associated with these improvements.

Renewing the Building Envelope: A Multi-residential case study

April 9, 2013

Several years ago, this author was invited by University of Toronto’s Ted Kesik, PhD, to join a technical advisory committee formed to provide a critical eye for work he was undertaking with Ivan Saleff, B.Tech (Arch.Sc.), M.Arch, OAA, MRAIC. The task was to produce a single-source document that would present state-of-the-art information on high-rise tower renewal; specifically Toronto’s aging stock primarily erected during the 1960s and ’70s. The result of Kesik and Saleff’s work was the resource document, Tower Renewal Guidelines.

Modelling Wall Assemblies: Developing an objective database for performance

April 5, 2013

Architects have traditionally been held at arm’s length when it comes to the performance of the assemblies they specify. The statistics regarding wall performance have always been provided by manufacturers or testing organizations. Values such as thermal resistance, fire rating, and acoustical performance for individual materials can be found from individual suppliers—still, an objective stance on how all the materials work together in an assembly is unavailable.

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