With the growing concern on global warming and climate change,
Low-E glass is proving to be an increasingly important glass product because of tis energy-saving properties. Low-E blocks significant amounts of radiant heat transfer, thus lowering the total heat flow through the window, enabling buildings to confine energy within its desired limits. It can reduce energy loss by as much as 30%-50% and is a powerful tool within the architectural design field in reducing dependence on fossil fuels.


Low-E is a coated material, with coatings made of microscopically thin, virtually invisible metal or metallic oxide layer deposited directly on the glass surface. Low-E thus reduces the infrared radiation from a warm pane of glass to a cooler pane, thereby lowering the U-factor of the window.


Different types of Low-E coatings have been designed to allow for high, moderate or low solar gain. It is highly recommended that we be advised of the usage and special requirements beforehand in order to ensure the best possible end quality.



– Can be used in a single-pane, single-glaze or double-pane (IGU) windows

– High visible light transmittance reduces load on lighting systems

– Promotes energy efficiency

– Reduces electricity cost

– Increases comfort and condensation resistance

– Can be heat-strengthened, tempered or laminated

– Lasts a lifetime

– Environment friendly – chemically bonded thus no harmful effects on its surroundings



– Residential projects where insulation is the primary concern for “view” homes

– Smaller commercial or institutional projects where low reflectivity is desirable

– Commercial – any project needing improved insulation and minimum reflectance such as retail storefronts, showrooms, restaurants, airports, schools, hospitals, museums, historic renovations

– Wide use in solariums for maximum solar control and insulation in sloped glazing

– Large skylights



Low-E Glass is manufactured using the Online Process (pyrolitic process).

– Online Chemical Vapor Deposition (CVD)

– Also known as the Hard Coat Low-E

– This is a clear glass manufactured by pouring a thin layer of either silver or molten tin oxide onto a sheet of glass while the glass is slightly molten. The tin actually becomes welded to the glass. This process makes it difficult to scratch or remove the tin. Often this glass has a bluish tint to it.