The doors and windows of common PVC film applications are divided into enclosure members or partition members according to their different positions. There are different design requirements to have functions such as heat preservation, heat insulation, sound insulation, waterproof, and fire prevention. The new requirements are energy-saving. In cold areas, the heat loss from the gaps between doors and windows accounts for about 25% of the total heating heat consumption.
The airtightness requirements of doors and windows are an important part of energy-saving design. Doors and windows are an important part of the building envelope system. Function 2: Doors and windows are also an important part of architectural modeling (contrast between virtual and real, rhythmic artistic effects, play an important role), so their shape, size, proportion, arrangement, color, modeling, etc. have an impact on the overall shape of the building. Have a big impact.
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