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Low-e glass

Want to make your home more energy-efficient or maximise the potential of a new-build? Purpose-designed glazing, such as low-e glass is an ideal solution. Working to reflect excess solar radiation and to keep homes cool during hotter spells and warmer during cooler ones, the glass is at the cutting edge of modern window technology. Available in different types and thicknesses and with a variety of surface patterns, at windows24.com customers can tailor low-e products to suit their exact needs.

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What is low-e glass & how does it work?

Short for low emission, low-e glass features a microscopic layer of a metal oxide such as silver. These low-e coatings are a modern advancement used in quality windows and doors that increase the energy efficiency of homes and reflect solar UV and infrared heat radiation away from the building. Different types of light and solar radiation have varying wavelengths. Due to this, low-e coatings can reflect infrared and UV radiation from the sun but still let in its visible light.

This is important as UV radiation can lead to the wear and tear of furniture and surfaces constantly exposed to it, just as infrared radiation can cause homes to become too warm when it enters buildings in summer. While these types of radiation are kept out, home interiors remain bright.

In terms of energy saving, it is also worth noting that, thanks to its low emissivity, in winter low-e thermal coatings help to reflect radiant heat back inside and prevent loss to the cooler exterior through windows or doors.

Low-e glass therefore acts as insulation, helping to maintain a comfortable interior temperature year-round, which reduces the need for a traditional heating or cooling unit along with the associated cost and carbon footprint.

Different types of low-e glass

There are two main types of low-e glass for windows and doors. The key difference lies in how they are produced.

  • A hard or pyrolytic low-e coating is fused to hot window or door glass upon its creation to create a durable bond.
  • A solar control or soft low-e coating, on the other hand, is applied and sealed to pre-cut glass in a vacuum chamber at room temperature.

In general, soft coat low-e glazing provides the best UV protection and has a lower emissivity.

Alongside manufacturing, low-e coatings differ in terms of where they are added onto the window or door glazing. At windows24.com, for example, the interior pane of our double glazing features a low-e glass coating whereas for triple glazing it is present on both the interior and exterior face for enhanced energy efficiency and heat control.

Customisation options for low-e products

At windows24.com all our window and door glass options, from standard to double or energy saving triple-pane, come with low-e coating. Thanks to our user-friendly online configurator this energy efficient functional performance can then be part of final products that come in beautiful designs.

Wide choice of frame material

A variety of frames are on offer for our windows and doors with low-e glass, for example. From charming wood to modern insulating uPVC or durable robust aluminium and clad uPVC-alu or wood-alu, each material comes with its own unique benefits.

A wide choice of materials means that windows and doors can be perfectly tailored to suit a range of building façades and interiors.

uPVC windows

uPVC windowsUp to -30%
from € 34 from € 34
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from € 105 from € 105
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from € 122 from € 122
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from € 162 from € 162
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Alu Windows

Aluminium windowsUp to -20%
from € 118 from € 118
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Quality colour finishes

A selection of colour and decor surface finishes are then also available for the frames.

The low-e, heat control window can be finished in a contemporary anthracite, for example, to add a contrast to a lighter building exterior or perhaps an authentic, durable wood replica surface is rather what you are after.

All finishes are applied during manufacturing via professional processes like powder coating, anodising, or foiling.

This ensures long-lasting vibrance and high UV resistance. Matching glazing bars and coloured roller shutters can then also be added to complement the design, bring character, and enhance solar heat protection – just head to the configurator to browse the options today.

Security for low-e windows and doors

As openings in buildings, windows and doors should not only be designed with heat saving performance in mind, they should also be adapted with high security to reduce the likelihood of a break-in. This is made possible for low-e windows from windows24.com thanks to high quality metal locking points from the renowned German supplier, Winkhaus. Customers can then select an increased number of inside mushroom pins and lock striking plates in our configurator or add a lockable handle, for example. This can have the low-e glass window or door achieve the impressive, police-recommended burglar resistance class of RC2.

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