CSA has updated this document by providing a new Table A1 with revised Climate Design Data used to compute Performance Grade and Water Test Pressure. The data in Table A1 is now harmonized with the data in the 2012 BCBC and other provincial codes based on the 2010 National Building Code. Owners and users of the guide are advised to use the new data, which in some cases differs significantly from the originally published version.
All registered users of the Canadian Supplement are urged to download the corrected version from the Shop CSA website by going to this link and clicking the Detailed Information tab: http://shop.csa.ca/en/canada/building-products/a440s1-09/invt/27022352009sup1,
