Tag: National

Branching out: The growing possibilities of taller wood structures for next-generation communities

June 20, 2017

Historically, wood has been associated with a cost-effective way of building safe housing and neighbourhoods, and that tradition should be continued. Wood construction allows homebuyers the opportunity to purchase a modern, spacious, and affordable home.

Designing the virtual air barrier

July 21, 2013

Since 1985, the National Building Code of Canada (NBC) requirements for an air barrier system have been adopted for all buildings in this country. While the air barrier concept is widely accepted by industry, its application can be particularly difficult and challenging when it comes to structures predating that code. With just over 25 years of this technology’s development, there remains a large proportion of existing buildings that have no air leakage control (i.e. no air barrier system).

Keeping the Outside Out and the Inside In: A look at rigid foam insulations for high-performance building envelopes

July 13, 2013

If the concept of building science could be distilled to one essential sentence, it would be the now-famous aphorism of Joseph Lstiburek, PhD, P. Eng., building science expert and adjunct professor of civil engineering at the University of Toronto. “The perfect wall is an environmental separator—it has to keep the outside out and the inside in,” he wrote. Lstiburek’s “perfect wall” (or roof or slab) includes four primary layers: rain control, air control, vapour control, and thermal control.

Developing a Clearly Better Building Envelope: Design principles for using glazing in energy-efficient building envelopes

July 9, 2013

The science of daylighting design is to adequately illuminate interiors without imposing additional cooling energy loads. Sunlight entering buildings through glazed assemblies can help reduce electric lighting loads and improve indoor comfort levels. However, over-lit interiors and glass with poor thermal performance can cause adverse side effects like glare, heat loss, and undesired solar heat gain.

Balcony Glazing: What has happened and where we are now

July 7, 2013

In the summer of 2011, there were numerous incidents of spontaneous breakage of monolithic tempered safety glass employed in balcony guard infill panels or balustrades. As some of these occurrences were located in Toronto, the subject of balcony guard glass became a media obsession. For balcony guard designers, manufacturers, glass processors, building developers, building officials, and condominium owners, the subject became a nightmare.

Are You Getting What You Paid For?: Quality control techniques for evaluating glazing assemblies

July 5, 2013

Glass is the most common material in the construction of any building’s exterior façade. It is used in windows, doors, curtain walls, skylights, guards, and canopies, as well as in the form of single-pane, double or triple insulating glass (IG) units, and laminated assemblies. Given the high demand for glass and glazing assemblies, and the recent amendment to the Ontario Building Code (OBC) that draws attention to the risks related to balcony glass, it is crucial glazed assemblies meet industry standards.

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