The doors and windows of the building is part of the structure of the building envelope, the most sensitive parts of the buildings heat exchange, energy consumption per unit area of the wall 5 to 6 times the doors and windows of the heat loss accounted for more than 40% of the entire building. The doors and windows of the outside of the building heat loss in three ways: first, through the aluminum extrusions heat conduction losses; radiant heat loss through the glass; Third, the the gap through windows and doors air convection heat loss. The the insulation making energy-saving aluminum alloy doors and windows should be considered from the three aspects.

An aluminum profiles aluminum alloy material is a good conductor of heat, the majority of the thermal conductivity is relatively high. To be made ​​of the thermal insulation glass to select profiles insulation broken handle that the partition profile heat conduction path, in order to achieve the purpose of the insulation.

2 glass insulation of windows and doors requires use of hollow glass, because the cavity between the insulating glass filled with drying, still air, so that thermal conductivity greatly reduced, and therefore hollow glass having excellent thermal insulation, sound insulation, and frost-resistant condensate, condensation properties, the thickness of the glass of the hollow glass 5 ~ 6mm, the common cavity thickness 9mm, 12mm.

The 3 sealing material insulation windows and doors with sealant should be used in weather rubber sealing strip corrosion resistance to ozone aging and anti-UV performance neoprene products should be used, open doors and windows fan the coincidence in part to set more than three sealing strip .