Low E Glass

High-performance glass solutions like Low-e combined with argon gas will help create a living environment that’s completely comfortable.

Enjoy the best of the outdoors indoors and live closer to the view you love.

How is the thermal efficiency of windows measured?

R-value is the thermal resistance of the total
window system (including glass, thermal spacer and joinery). The higher the R-value, the less heat is lost through the system, and the better the insulation.

If you’re looking for increased energy efficiency and comfort in your living environment, adding Low-E high performance glass and argon gas to your double glazed unit provides even better results.

cat playing near window

Low E Standard

  • Improved heat retention from standard doubled glazed glass
  • Reduced internal condensation (variations apply ie heating & ventilation)
  • Certain level of solar control
  • Slight blue hue
  • Available with thermal spacer + argon gas

  • Excellent heat retention
  • Available with thermal spacer + argon gas
  • High visibility of ultra-clear Low E glass (High VLT)
  • Mild low iron substrate: glass has a lower iron content than standard glass. The iron content provides the green tinge to clear glass.
Thermal Spacer

Why Low-e?


Low-E is a low emissivity glass. It has an almost invisible coating that covers the inside of a pane of glass. This coating lets the sun’s light and energy in and reflects heat indoors to create a shield against the cold.

Low-E contributes to a warmer interior surface, significantly reducing condensation in your home.

Low E stands for “Low Emissivity”

In other words, the ability to radiate absorbed energy

Soft-coat Low E glass contains one or more layers of metallic silver within a multi-layered coating. The silver helps provide superior thermal insulation and also enables protection from solar radiation. The level of thermal insulation and of solar protection varies across Low E products.

Key Benefits:

  • Increased thermal insulation
  • Lesser internal condensation
  • Reduced solar gain (direct heat)
  • Protects against UV fade on fabrics, furnishings and carpet
  • Reduces heating and colling costs
Low E Benefits

Why Argon Gas?


Argon gas is colourless, odourless and is roughly 40% denser than air. When argon gas is injected in between the glass in a double glazed unit, it slows the rate of heat loss and the insulating performance of your double glazing increases around 15%.

Argon gas windows bring the temperature of the window closer to room temperature, which eliminates air currents and drafts that occur when differing temperatures meet.

Used in conjunction with Low-E protective coating, you will soon feel the benefits of warm and energy-efficient glass.

We deliver exactly what we promise.

Get in touch

for your FREE quote today.

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81a Gasson Street
Sydenham, Christchurch
Monday to Friday
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Weekends by Appointment
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