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Standards for testing and evaluating windows.
Certification body to ensure windows are made consistently (like ISO 9000)
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- Windows have been tested at sometime in accordance with the A440 window stardard.
- Windows may be tested to out-of-date standards.
- Will not be approved for government grants.
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- Factory audit, 4 times per year. Witnessed testing plus minimum performance results are much higher.
- Only the latest standard is used, ensuring maximum performance standards.
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Choosing a window or door is not exactly an open-and-shut case.
With thousands of products to choose from, how do you recognize good value?
For starters, look for products that have been tested and certified to relevant performance standards. Products certified under CSA International’s Windows and Doors Certification Program will carry the CSA mark.

Lifestyle windows are certified by the Canadian Standards Association in accordance with CAN/CSA - A440-00
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