Advancing energy-efficient timber façades

The building industry consumes 40 per cent of the world’s energy, and is responsible for more than 38 per cent of greenhouse gas (GHG) emissions, according to studies completed by the World Business Council for Sustainable Development (WBCSD 2009). The energy demand and its costs will continue to increase; this explains why Canadian building code requirements are becoming more stringent.

+ Read More

Roof considerations for northern climates

With any important decision in life, it is necessary to understand the trade-offs associated with the choices made. The same is true when selecting a roofing assembly. A common theme is sustainability and the use of ‘green’ building methods and materials—however, trouble can arise when materials are selected and purchased solely because of perceived energy or environmental benefits.

+ Read More

Sprayfoam in the Attic: When is venting appropriate?

For decades, designers of attics and crawlspaces have used cross-ventilation to minimize potential for moisture accumulation and condensation. However, spurred by recent claims of energy savings and moisture control, unvented attics have become popular in both residential and commercial applications. While these attics can be used in many circumstances, this author believes there are reasons to use vented assemblies in many situations.

+ Read More

The single-ply skinny on EPDM

With evolving building codes, changing weather patterns, and emerging sustainability needs, demands on commercial roofing installations are ever-changing. The same is true for the debates centring on which materials and assemblies prove most reliable.

+ Read More

Specifying modern timber connections

Widely used in conventional frame construction, wood is not new to the Canadian design community. What is ‘new,’ however, are changes to building codes that allow for taller structures to be constructed of wood, along with the introduction and development of new products like cross-laminated timber (CLT) and other massive wood panels manufactured from laminated veneer lumber (LVL) or laminated strand lumber (LSL).

+ Read More