Door: Indoor and outdoor communication, traffic evacuation (both as ventilation and lighting) - scale, location, opening, structure.
Window: Ventilation, lighting (the role of sightseeing) - size, form, opening, structure.
One of the roles is:
Doors and windows are divided into enclosure members or partition members according to their locations. There are different design requirements for different functions such as thermal insulation, heat insulation, sound insulation, waterproofing and fire prevention. New requirements for energy saving. The heat loss from the gap between doors and windows in cold areas accounts for about 25% of the total heating heat consumption. The requirement of the closeness of doors and windows is an important part of energy-saving design. Doors and windows are important components of building envelope system.
Doors and windows are an important part of architectural modeling (virtual and real contrast, rhythm art effect, plays an important role), so their shape, size, proportion, arrangement, color, shape and so on have a great impact on the overall shape of the building.
Now many people are equipped with double-glazed doors and windows, in addition to enhancing the effect of thermal insulation, the important role is sound insulation, the prosperity of the city, dense living, developed transportation, sound insulation effect is more and more popular