How much does the thermal insulation performance improve when ordinary windows and doors are upgraded to system windows and doors?
Profiles: The profiles of ordinary doors and windows are mostly non-bridge-breaking aluminium alloy or plastic steel, with relatively high thermal conductivity. The system doors and windows often use broken bridge aluminium profiles, the middle of the heat insulation can effectively block the heat conduction. Take the common broken bridge aluminium profile as an example, its thermal conductivity can be reduced by about 40%-60% compared with ordinary aluminium alloy profile, which greatly reduces the transfer of indoor and outdoor heat through the window frame.
Glass: Ordinary doors and windows are generally single glass or ordinary double insulating glass, with limited thermal insulation performance. System doors and windows mostly use Low-E insulating glass, three-glass, two-cavity and other high-performance glass.
Sealing: System doors and windows are equipped with high-quality sealing tape and rigorous sealing design, compared with ordinary doors and windows, can effectively reduce air infiltration, reduce heat loss through air convection. Good sealing can make the air infiltration rate of system windows and doors 70%-90% lower than that of ordinary windows and doors, thus significantly improving the thermal insulation performance.
The effect of improving the thermal insulation performance of windows and doors in different climatic conditions
Cold regions: in regions with colder winters, cold regions: in regions with colder winters.
Temperate regions: In temperate regions, the indoor-outdoor temperature difference between ordinary doors and windows in winter is about 5℃-10℃, and the temperature difference can be raised to 8℃-15℃ after upgrading. System windows and doors can effectively reduce the loss of indoor heat in winter, so as to maintain a relatively warm environment indoors, and at the same time in the summer can to a certain extent block the inflow of outdoor heat to reduce air-conditioning energy consumption.
Subtropical and tropical areas: These areas are hot in summer, and ordinary windows and doors are difficult to effectively block outdoor heat from entering the room in summer. After upgrading to system windows and doors, their thermal insulation performance can reduce the indoor temperature by about 3℃-5℃ in summer, reduce the frequency of air-conditioning use and energy consumption, and improve indoor comfort.
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