The transom refers to the small window in the upper part of the door and window used for ventilation, which is beneficial to the air circulation in the room.
This kind of window is located low and shaped like a wave. It was originally used on thatched roofs during the Middle Ages for lighting and ventilation. In the mid-to-late 19th century, it became popular in the United States. Later, it was mostly used in New England to beautify roofs and make decorations.
The dormer window located in the center above the front door breaks the monotony of the roof. The corrugated dormer window makes the house more beautiful and perfectly combines these straight lines. Corrugated dormer windows can be seen everywhere on the roof.
Extended information
Many office building glass curtain walls in our country have window openings. The proportion of office buildings with fully enclosed curtain walls is not very high. In developed countries, almost all office buildings are fully enclosed. .
There are several reasons:
1. Chinese people like air flow.
2. Due to the need for energy saving and environmental protection, many cities require transom windows in high-rise buildings. Natural ventilation, bringing in fresh air, is better than breathing the recycled air inside the building.
3. The decisive reason should be cost control. The cost of fully enclosed curtain walls is higher. To save energy and money, use natural ventilation instead of mechanical ventilation. To people outside the building, a building without transom windows looks very comfortable, but to people inside the building, the experience of natural ventilation is better than mechanical ventilation.
Totally enclosed curtain walls also have many benefits. High-rise office buildings have fully enclosed curtain walls. One reason is to look good. The most important thing is to prevent the leakage of air conditioning (heating). The wind in high-rise buildings is very strong. Opening a few transom windows may cause the entire air conditioning system to fail.