Guidelines on the Use of CSA A440S1-09 (Canadian Supplement) for Determining Fenestration Performance Grades in British Columbia

TB14-01
Published: January, 2014

This guideline document was prepared to inform responsible parties abut the appropriate use and limitations of CSA A440S1-09, commonly known as the Canadian Supplement, for specifying fenestration performance grades. Click here here to view the full document.

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