Building envelope thermal bridging guide released
Guide explores how building industry can account for impact of thermal bridging
It's becoming more evident that thermal performance of a building's envelope can be greatly affected by thermal bridging, which are localized areas of high heat flow through walls, roofs and other insulated building envelope components.
A number of partners, including BC Hydro Power Smart, have joined forces to produce a Thermal Bridging Guide. It should be useful to the likes of energy standards committees, governments, utilities, architects, mechanical designers, building envelope consultants, energy modelers, developers, contractors, manufacturers and trade organizations.
What is thermal bridging?
Thermal bridging is caused by highly conductive elements that penetrate the thermal insulation and/or misaligned planes of thermal insulation. These paths allow heat flow to bypass the insulating layer, and reduce the effectiveness of the insulation.
Research and monitoring of buildings increasingly shows the value of reducing thermal bridging in new construction, and mitigating thermal bridging impact in existing buildings. Thermal bridging can significantly increase whole building energy use, and it poses a risk of condensation on cold surfaces, and can decrease occupant comfort.
About the Thermal Bridging Guide
Available on the New Construction Program New Construction Program page, the guide explores how B.C.'s building industry can effectively account for the impact of thermal bridging as part of meeting the challenges of reducing energy use in buildings.