The Superhome Movement’s BASE / BETTER / BEST criteria give you options for your windows – depending on your particular needs, goals and budget, which temperature zone you’re in, and the design of your home.

The area of windows, and how the windows are oriented to the sun, will affect heat retention. Double glazing is a requirement for Superhome BASE certification. Triple glazing is recommended for BEST certification.

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Darren Ballantine: Metro Glass

‍“Older single glazing is often responsible for half of all heat lost. Standard double glazing is up to 52% more efficient than single glazing at retaining heat and keeping out the cold. Triple glazing has U-values up to 82% higher than standard double glazing – significantly reducing the energy demand for heating and cooling a home, by maintaining a more consistent temperature year round.”
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Martin Ball: NK Windows

‍“Most new houses and additions will require double glazing to comply with the NZ Building Code. For renovation, if you don’t require consent, double-glazing isn’t mandatory, but is worth considering for improved warmth and energy efficiency. Triple glazed windows offer even better thermal performance.”
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WHAT IS ARGON?  

Argon is now commonly used in double and triple glazing to provide additional levels of insulation in the window unit.
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Argon is a dense gas that slows down the rate of heat transfer through the panes of glass, acting as a thermal insulator. Low-E glass is important as it reflects a higher percentage of heat back into your home than standard uncoated glass. In summer it reflects heat from the sun back outside, helping keep the interior cool. In the winter, it reflects heat back into the room, helping to keep it warm.
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Argon not only acts as an insulator but also ensures even temperature distribution across the window, reducing the likelihood of condensation. Argon-filled double-glazed glass in a uPVC frame is typically 50-60% more energy efficient than single-glazed glass.

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