Low-E Glass


Glenny Glass offers a wide range of Low Emissivity Glass solutions.  
Low Emissivity or Low-E glass refers to spectrally selective glass coatings. These coatings reduce heat gain or loss by reflecting long-wave infrared energy (heat) and therefore, decrease the U-values and solar heat gain - In doing so, improving the energy efficiency of the glazing. Due to its relative neutrality in appearance and energy efficiency, low-E glass is widely used in both commercial buildings and residential applications.
Based on how it is manufactured, low-E glass can fall into two categories: pyrolytic deposition ("hard coat") and vacuum deposition (sputter coating or "soft coat") low-E. The difference between the two is that the pyrolytic deposition method applies various metals to molten glass during the float glass manufacturing process. Vacuum deposition, on the other hand, applies various metals off-line in a large vacuum chamber. Because of this manufacturing difference "hard coat" low-e coatings are more durable and can be used in exposed applications, while "soft coat" low-e coatings have improved energy performance and are used on interior surfaces of high performance insulated glass units.
Glenny Glass offers Low-e products from Guardian, Pilkington and AGC.
Glenny Glass recommends that Low-E glass options be discussed with customers so that the performance benefits and appearance can be weighed, resulting in an informed decision and full satisfaction.

Ask us about:

  • Low Emmissivity Float Glass