What is Low-E glass?

Low-E glass, or low-emissivity glass, is an innovative solution designed to enhance the energy efficiency of your windows and doors. Its advanced coating on a single or double-glazed unit helps control heat transfer through windows, making homes and buildings more comfortable. Low-E glass is particularly effective across Australia’s diverse climatic regions, reducing energy consumption by limiting the amount of heat that enters or escapes through windows.

What are the benefits of Low-E glass?

Low-E glass offers many benefits that make it an ideal choice for homeowners and businesses.

  1. Energy efficient.
    Low-E glass reduces heat transfer through your windows, keeping homes cooler in the summer and warmer in the winter. This helps reduce the need for artificial heating and cooling, leading to lower energy bills.
  2. Reduction in UV.
    The special coating on Low-E glass blocks a significant amount of UV rays, helping protect furniture, flooring and other interior items from fading.
  3. Enhanced comfort.
    By controlling the amount of solar heat entering the home, Low-E glass creates a more comfortable indoor environment without compromising natural light.
  4. Environmental impact.
    Reducing the reliance on energy-intensive heating and cooling systems helps lower your carbon footprint, making Low-E glass a more eco-friendly option.

How effective is Low-E glass?

Australia’s climate varies greatly from region to region, making energy-efficient building materials essential. Low-E glass performs exceptionally well in Australia’s hot summers and cooler winters, keeping homes insulated against temperature extremes. Whether in coastal areas or inland, Low-E glass is effective in maintaining a stable and comfortable indoor climate.

In cooler climates, like Victoria or Tasmania:

  • Buildings can lose up to 40% of their heat through windows.
  • Low-E glass can prevent up to 39% of heat loss or up to 70% when combined with double glazing.*

In warmer climates, like Northern Queensland:

  • Glass contributes to roughly 87% of a building’s heat gain (how much heat is trapped in the building from the sun).
  • Low-E glass can prevent up to 40% of solar heat gain or up to 77% when combined with double glazing.*

Which products are available with Low-E glass?

A&L offers a wide range of products that can be customised with Low-E glass in a single or double-glazed unit. Our range includes windows and doors that not only provide superior thermal performance but also improve the overall aesthetics of your home. Explore our range and speak to one of our representatives to understand the best options for your next project.

Explore our range

** The performance figures shown are based on heat gain through glass only. Data has been calculated using NFRC 100 – 2001 environmental conditions and Window 5.2 software from the Lawrence Berkeley National Laboratory (2006). Savings are in comparison to using 3 mm clear glass and may vary depending on actual operating conditions. Source AGWA.

Speak to your A&L sales representative for more info about design options for your next project