Low-e Glass

Blending Natural Views with Solar Efficiency

Glass is one of the most popular and versatile building materials used today, and it provides a dramatic aesthetic. But the beauty of glass is pointless if the people inside the building are uncomfortable or if energy inefficiency makes the building too expensive to operate.

Low-emissivity (low-e) glass coatings were developed to minimize the amount of ultraviolet and infrared light that can pass through glass without compromising the amount of visible light that is transmitted. A microscopically thin transparent coating allows low-e glass to reflect exterior heat in warm temperatures and hold in heat during cold temperatures, making buildings light, bright and energy-efficient.

PPG offers two types of low-e coated glasses: Solarban® solar control low-e glasses and Sungate® passive low-e glass. Learn about low-e glass and how it works in the PPG Glass Education Center.

Solarban Glass
Sungate Glass

SOLARBAN® Solar Control Low-E Glasses by PPG

Solarban glass is a spectrally selective glass option which reduces long (ultraviolet) and short wave (infrared) radiation, while at the same time allowing visible light to be transmitted through the glass. Solarban glass products by PPG let you specify larger spans of glass that maximize natural daylighting without sacrificing thermal efficiency.

With a range of options, the Solarban family of glass products features a clear aesthetic and among the highest light-to-solar gain (LSG) ratios in the industry and can be combined with tints for even better performance. 

SUNGATE® Passive Low-E Glass by PPG
With its ability to transmit the warming rays of the sun, Sungate passive low-e glass offers the perfect balance of energy efficiency and interior comfort for heating-dominated climates because it improves thermal performance and reduces solar heat gain.  Since the coatings are neutral, Sungate 400 glass is the ideal solution for energy-efficient commercial structures where the original appearance of the glass is desired.