What are the structural requirements for thermal insulation and heat insulation of general building curtain walls?

1, glass curtain wall insulation materials should be installed firmly, and should keep a distance of more than 3 mm with the glass. Thermal insulation materials shall be full and smooth, leaving no gap, and their packing density and thickness shall meet the design requirements.

2. When installing the inner lining board for the thermal insulation layer of the glass curtain wall, elastic rubber sealing strips should be sleeved around the inner lining board, and the inner lining board should be closely jointed with the components.

3. The thermal insulation materials of metal and stone curtain walls can be combined with metal plates and slates, but there should be an air layer (ventilation layer) of more than 5 mm on the outer surface of the main structure for the condensate to be discharged from the curtain wall layers.

4. The glass curtain wall with curtain wall thermal insulation requirements should use insulating glass, and heat-insulating aluminum alloy profiles should be used when necessary; For glass curtain walls with heat insulation requirements, it is advisable to design suitable sunshade devices or use sunshade glass.

5. In the heating area in winter, the aluminum foil surface of the thermal insulation panel should face indoors; When there is no steam-proof aluminum foil surface, there should be a lined steam-proof plate on the indoor side.