Informational Bulletin: Proposed Membrane Roof Uplift Testing

This Informational Bulletin provides an overview of the proposed requirements of the 2015 National Building Code of Canada (NBC) to adopt a new testing requirement for the evaluation of wind uplift resistance of membrane roofing systems by adding reference to CSA A123.21, Standard Test Method for the Dynamic Wind Uplift Resistance of Membrane-roofing Systems. Manufacturers looking to sell mechanically attached and adhered membrane roofi­ng systems into the Canadian market will have an impact to the type of testing required for their product’s compliance.

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