What is Low-E glass and how does it work?

Low-E glass (Low Emissivity Glass) is energy-saving coated glass commonly used inside insulated glass units. A nano metal coating is applied on glass surface to reflect infrared heat radiation while letting visible daylight pass through.

Two main types of Low-E glass:

1.Hard Coat (Online Low-E): Coated during float glass production. It can be stored separately after tempering. Ideal for hot climate zones to block outdoor heat.

2.Soft Coat (Offline Low-E): Better thermal performance, but the coating will oxidize once exposed to air. It must be sealed inside IGU panels. Perfect for cold areas to retain indoor heating.

Core advantages:

1.Keep natural daylight without dark tint.

2.Summer performance: Reflect outdoor infrared heat to reduce air conditioning power consumption.

3.Winter performance: Reflect indoor heat back inside to save heating cost.

Important reminder for export: Soft coat Low-E must be fully sealed inside insulated glass. Damaged seal leads to coating failure.

Recommended projects: Luxury residential buildings, passive houses, commercial buildings with strict energy efficiency requirements.

Please leave your contact information, and we will get in touch with you within 24 hours.