1. Thermal property: quite low U value (heat transfer coefficient）.
 
2. Optical property：According to the actual needs, it can select the glass with different visible light transmittance and reflectivity very flexibly.
 
3. Sound insulation: the insulating glass can generally reduce noise by 30 dB.
 
4. Anti-condensation: It is lower than the dew point (-40℃ specified by the national regulations, and lower -70℃ to ensure that the insulating glass will not condense.
 
5. Leakproofness: Aluminum frame(space frame) is formed in one time and sealed by butyl rubber, structural adhesive or polysulfide adhesive, ensuring good sealing property and service life.