*The Effective R Calculator tool is fully optimized for best performance in Google Chrome.
The purpose of this R Value online tool is to provide designers with climate zone-appropriate insulated wall assembly solutions that are easily comparable with national and provincial energy efficiency prescriptive provisions.
Each assembly lists:
- Effective thermal resistance Reff* for complying with the National Building Code (NBC) for houses and the National Energy Code for Buildings (NECB) for larger buildings
- Installed R-value for complying with the Ontario Building Code
- Centre of cavity R-value for complying with the Quebec Construction Code.
*The calculation of effective thermal resistance is performed in compliance with NBC Subsection 9.36.5. of Division B.
Each assembly comes with a climate-specific colour-coded durability assessment, which has been determined considering computer analysis and field experience by building science experts in Canada.
Many thanks to the steering committee and project team for making this online tool possible:
|Ben Hawken||Mattamy Homes Limited|
|BJ Yeh||APA – The Engineered Wood Association|
|Bob Wilson||R.S. Wilson Building Inspection & Consulting Inc.|
|Bruce West||City of Brampton|
|Christopher McLellan||Natural Resources Canada|
|Cory McCambridge||APA – The Engineered Wood Association|
|Dave Henderson||Brookfield Homes|
|David Silburn||SAIT Green Building Technologies|
|Gillian Haley||ERA Architects Inc.|
|Jason Shapardanis||Empire Communities|
|John Hockman||JLHockman Consulting Inc.|
|Louis Previte||Great Gulf Homes|
|Paul Smith||Mattamy Homes Corporation|
|Peter Birkbeck||Icynene Inc.|
|Peter Culyer||EIFS Council of Canada|
|Richard Kadulski||Solplan Review|
|Rick Gratton||Brookfield Residencial Properties Inc.|
|Robert Marshall||CertainTeed SAINT-GOBAIN|
|Salvatore Ciarlo||Owens Corning Canada|
|Silvio Plescia||Canada Mortgage and Housing Corporation|
|Steve Doty||Empire Communities|
|Todd Rogers||City of St. Catharines|
To join the committee or to discuss inclusion of more products in the tool, please contact Robert Jonkman – [email protected]
|Project Initiator||Robert Jonkman||Canadian Wood Council|
|Project Lead||Michael Lio||buildABILITY Corportation|
|Project Manager and Publishing Expert||Francesca Cuda||buildABILITY Corporation|
|Builder Lead and Field Expert||Andy Oding||Building Knowledge Canada|
|Technical Lead and Building Science Expert||Chris Timusk||Timusk Consulting, George Brown College|
|Technical Project Advisor||Gord Cooke||Building Knowledge Canada|
|WUFI Expert Panelist||Graham Finch||RDH Consulting|
|WUFI Expert Panelist||Chris Schumacher||RDH Consulting|