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NAFS: What’s in, what’s out and what to do about it
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With the title “North American Fenestration Standard”, it is tempting to think that NAFS applies equally to all fenestration products. This is not the case: while NAFS applies to a great many fenestration products, it excludes many products used in larger buildings from its scope. Fortunately, the code recognizes this, and provides complementary compliance paths for products within and outside the scope of the standard.
This presentation will examine NAFS and the Canadian Supplement to NAFS from the perspective of the National and Ontario Building Codes. It will explain why Performance Class is so central to NAFS, yet peripheral to the code. And why in Canada we dismantle the Performance Grade, the “American ABC rating” to specify air-water-structural properties independently of one another.
This session will also address the matter of products outside the scope of NAFS, and how the methods provided in CSA A440S1, the Canadian Supplement to NAFS, can be used to determine suitable design pressure and water penetration resistance test pressure values for products within, as well as outside the scope of the standard.
Bonus: this presentation is supplemented with a free e-book for participants titled “An Architect’s Guide to NAFS: Using with the North American Fenestration Standard in Canada”.
Al Jaugelis is a senior fenestration specialist with RDH Building Science Inc., his full bio is available online here.
Top Glass offers this and other sessions that qualify for OAA credits.
Admission is free, and all attendees will be issued a certificate confirming attendance and presentation details.
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