Insulating Glass (Insulating Glass Unit, IGU) consists of two or more panes of glass separated by spacers and hermetically sealed around the perimeter with high-performance sealants, creating a dry, sealed air or gas-filled cavity between the glass panes. This insulated construction provides excellent thermal and acoustic performance while improving overall energy efficiency. Depending on project requirements, the glass panes can be configured using clear float glass, tinted glass, coated glass, laminated glass, tempered glass, or other specialty glass products.

Excellent Thermal Insulation – The sealed insulating cavity significantly reduces heat transfer through the glass, improving the overall thermal performance of the glazing system. When filled with inert gases such as argon, the thermal transmittance (U-value) can be further reduced by approximately 0.2–0.3 W/(m²·K).
Excellent Acoustic Insulation – Standard insulating glass provides sound insulation of more than 30 dB, effectively reducing external noise. When filled with inert gas, its acoustic performance can be further enhanced for a quieter indoor environment.

GB/T 11944 – Insulating Glass (Chinese National Standard)

BS EN 1279 – Glass in Building – Insulating Glass Units (European Standard)

AS/NZS 4666 – Insulating Glass Units (Australia/New Zealand Standard)

ASTM E2190 – Standard Specification for Insulating Glass Unit Performance and Evaluation (USA)

IGCC Certified – Insulating Glass Certification Council (International Certification)