Design Essentials of Insulated glass

- Mar 01, 2018-

1-groove aluminum double-channel sealed insulating glass first sealing butyl rubber, with very low water vapor transmittance; The second sealant mainly has polysulfide and silicone glue. The water vapor transmittance of polysulfide rubber is less than silicone rubber, but anti-ultraviolet ability is not as good as silicone glue, it is suitable for window or frame glass curtain wall (because aluminum frame can shade, avoid sunlight direct irradiation); Silicone rubber is suitable for the hidden frame glass curtain wall, its anti-ultraviolet resistance and strength are higher than the polysulfide gum. When the building on the insulating glass has a higher decorative requirements, you can choose cream or transparent silicone glue. Wooden windows do not use silicone glue as the second seal, because of its resistance to wood products, the ability of preservatives is poor, sealant will be damaged by migration.

2 spacer aluminum frame should be used for continuous long pipe bending angle, the joint application of butyl rubber sealing treatment; spacer aluminum frame, such as the use of four-corner plug, the joints are also used butyl sealant to do the sealing treatment, the hollow glass made of this, the use of life than the former. When the second sealing glue of insulating glass adopts silicone glue, it should not adopt the hollow glass with Four corners socket-type spacer aluminum frame.

3 Because of the use of sealant seal, it should not be used in 70 ℃ or higher temperature, otherwise it will greatly affect the service life of insulating glass.

4 Insulating Glass air layer internal pressure changes make glass deformation, will cause image distortion, so at an altitude of 1000m or above the use of insulating glass, air pressure must be adjusted, in order to be with the glass supplier consultation.

The thermal insulation of the 5 Windows is closely related to the window frame material, so you should choose the window frame material with good insulation performance.

6 if used as daylighting roof, indoor side glass should use interlayer or explosion-proof film.

7 Low-e insulating glass, the film surface is on the 2nd or 3rd side, should be selected according to the design. If the design of the insulating glass must be the size of the form, the film must be placed on the 3rd side.

The maximum allowable area of 84 side-supported insulating glass is 1.5 times times the maximum allowable area of insulating glass according to the thickness of two pieces of glass sheet.

9 Architectural design should be the following technical requirements: insulation performance, insulation performance, sound insulation performance, lighting performance, sealing performance, weather performance.