Low-E Glass (Energy Efficient Glass)

Low-E (Low Emissivity) glass has a microscopic coating that reflects heat while allowing natural light to enter. It is ideal for energy-efficient homes — keeping interiors cooler in summer and warmer in winter.

Low-E Glass

What Is Low-E Glass?

Low-E (Low Emissivity) glass is coated with a microscopically thin, transparent metallic layer that reflects long-wave infrared radiation (heat) while allowing short-wave solar radiation (visible light) to pass through. This selective filtering property makes Low-E glass the most energy-efficient glazing option available.

In summer, Low-E glass reflects external heat away from the building. In winter, it reflects internal heat back into the room. This dual action significantly reduces heating and cooling energy consumption throughout the year.

Key Benefits

  • Reflects heat in both directions — keeps interiors comfortable year-round
  • Allows maximum natural light transmission
  • Significantly reduces heating and cooling energy costs
  • Reduces condensation on interior glass surfaces
  • Blocks up to 99% of harmful UV radiation
  • Virtually invisible coating — looks like clear glass

Types of Low-E Glass

Hard Coat Low-E (Pyrolytic)

Coating applied during the glass manufacturing process. More durable and can be used as a single pane, but slightly lower performance than soft coat.

  • More durable coating
  • Can be used as single glazing
  • Good thermal performance
Soft Coat Low-E (Sputtered)

Applied after manufacturing using a vacuum sputtering process. Higher performance but must be used within a sealed double glazed unit to protect the coating.

  • Superior thermal performance
  • Must be used in DGU
  • Best energy efficiency

Ideal Applications

  • Energy-efficient homes and green buildings
  • Homes in hot climates (reduces cooling loads)
  • Homes in cold climates (reduces heating loads)
  • Large glazed areas (conservatories, glass walls)
  • uPVC window systems for maximum performance

Why Choose Flyers Decor?

Flyers Decor supplies Low-E glass from certified manufacturers, ensuring consistent coating quality and performance. We offer Low-E glass as part of our double glazed unit range, combining the thermal performance of Low-E coating with the insulating properties of DGU.

Our glass specialists can advise on the most appropriate Low-E specification for your climate, orientation, and performance requirements.


Get a Quote

Fill out the form below to receive a quote for Low-E glass supply and installation.