Building Envelope

November 28, 2024

Air Barrier Detailing in Attached Housing: Compartmentalization

In this video, Building Knowledge Canada President Gord Cooke describes the construction techniques that make multi-family buildings better for everyone by ensuring that the party wall in multi-family dwellings is as airtight as an exterior wall.

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November 6, 2024

Optimizing Winter Humidity and Water Use

Maintaining optimal indoor humidity levels in cold climate houses has evolved greatly, with the introduction of heat-recovery ventilators and energy-recovery ventilators, whole-house humidifiers and the increasing sophistication of controls in “smart” thermostats. Discover established strategies for optimizing all these systems with the help of an article by Gord Cooke.

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October 17, 2024

The Mechanisms and Measurement of Air Leakage in Houses

Join Building Science Expert Trevor Trainor as he presents some simple hygrothermal modeling scenarios for standard walls across various Canadian climate zones. A bit of myth-busting along with some cautionary tales about building-to-minimum-code. A dive into why Poly as a VB (vapour barrier) is a poor choice in many regions of Canada—and the importance of vapour diffusion retarder technologies and products.

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October 7, 2024

WUFI on the Side: A Quick Intro to Hygrothermal Modeling of Standard Walls and Why Code Walls With 6 Mil Poly VB May Be the Riskiest for Builders

Join Building Science Expert Trevor Trainor as he presents some simple hygrothermal modeling scenarios for standard walls across various Canadian climate zones. A bit of myth-busting along with some cautionary tales about building-to-minimum-code. A dive into why Poly as a VB (vapour barrier) is a poor choice in many regions of Canada—and the importance of vapour diffusion retarder technologies and products.

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October 2, 2024

Is It Time for Another Look at Insulated Concrete Forms?

What do you need to know about sizing heat pumps? We have the answers to all your questions. Gord cautions that getting the most out of a heat pump depends on sizing it to the building and its systems.

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August 12, 2024

Airtightness Testing in Large Buildings

Demand for more airtight large buildings is growing. Discover whether airtightness testing in larger buildings is just a matter of scaling up the procedures for a family home or if there are significant differences.

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