Do I Need the Highest Performance Level?

Just like energy efficiency, the window's overall performance is also essential to making the best decision.  

The following three factors must be considered when determining a window's strength and efficiency:

  • Wind resistance

  • Water tightness

  • Air tightness

To know the overall performance of a window, ask to see the North American Fenestration Standard (NAFS) results.  These results show the performance grade (PG) of a window.  This information is obtained during tests performed in accordance with the fenestration requirements imposed by the National Building Code.

 

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As members in good standing with Fenestration Canada, Kehl has full privileges to use the performance calculator.

Simply input your location and a set of standards will be produced for your area.

Kehl Windows and Doors   370 King St. W, P.O. Box 222   Harrow, Ontario  N0R 1G0
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© Kehl Window Systems Inc. 2018