Why Double Glazing Isn’t Just for Winter: The Secret to Staying Cool This Summer
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When most homeowners think of double glazing, they picture warm, cosy homes through winter. But modern glazing technology has evolved and the right glass can keep your home cooler, brighter, and more energy efficient through summer too.
If you live in Tauranga or the Bay of Plenty, you already know how intense our sunshine can get. Standard single or standard double glazing lets solar heat pour in, turning your living spaces into ovens. That’s where SuperTherm™ Cool double glazing makes all the difference.
Why Homes Overheat in Summer
New Zealand homes are often built for warmth, not for solar control. Standard glass allows up to 80% of the sun’s radiant heat to pass through. Once trapped indoors, that heat quickly raises room temperatures, particularly in north- and west-facing rooms.
When that happens, air conditioners work overtime, driving up your power bills. Glare becomes a problem, and UV rays begin to fade furniture, flooring, and curtains.
💡 Tip: If your living area feels hotter inside than outside, or you’re constantly drawing the blinds, your glass is likely the problem - not the sunshine.
How SuperTherm™ Cool Double Glazing Works
SuperTherm™ Cool is an advanced Low-E (low emissivity) double glazing system engineered for New Zealand’s unique climate. Unlike standard glazing, it reflects excess solar heat before it enters your home, while still letting in plenty of natural daylight.
The secret lies in its microscopic Low-E coating, which bounces infrared and UV rays away from your windows. That means:
Cooler interiors on hot summer days
Bright rooms without harsh glare
Lower air conditioning costs
Protection from fading and UV damage
This technology delivers year-round balance - cooler in summer, warmer in winter, and always energy efficient.
The Goldilocks Comfort Difference
At Elite Double Glazing, we know every home is different. That’s why we create custom double glazing solutions to suit each property’s orientation, architecture, and lifestyle.
Your home shouldn’t feel too hot or too cold - it should feel just right. That’s what we call Goldilocks Comfort.
Our SuperTherm™ range lets us optimise comfort room by room:
SuperTherm™ Cool – for sun-exposed rooms that overheat in summer
SuperTherm™ Warm – for cooler, shaded areas needing better winter insulation
SuperTherm™ Protect – for noise control, UV protection, and fading resistance
Together, they create the perfect environment across every season — balanced, quiet, and energy efficient.
Source: RetroGLAZE Learn more here
Ready to Stay Cool This Summer?
Double glazing isn’t just for winter warmth - it’s the smartest way to achieve true year-round comfort.
🎄 Beat the Christmas rush! Book your free, no-obligation quote today and experience Goldilocks Comfort for yourself - not too hot, not too cold, just right.
FAQ: Double Glazing for Summer Comfort
Does double glazing really help in summer?
Yes. Low-E double glazing like SuperTherm™ Cool reflects solar heat while keeping your rooms bright and naturally lit, meaning less need for air conditioning.
Will Low-E glass make my home too dark?
No. SuperTherm™ is designed to maintain natural daylight — you’ll still enjoy bright interiors without glare.
Can I retrofit my existing aluminium or timber windows?
Absolutely. Our retrofit system fits seamlessly into your current frames, avoiding the cost and disruption of full replacement.
Is SuperTherm™ available in Tauranga?
Yes. Elite Double Glazing is the exclusive RetroGlaze® partner in Tauranga, offering the full SuperTherm™ range across the Bay of Plenty region.
