What are these boxed doors outside store fronts in New York?
- By
- Aparna Patel
- |
- 24 Jul, 2023
- |
That is a sidewalk vestibule. The idea is to have an extra door between the building’s interior and the outside, so as to reduce the amount of air exchanged when people go in and out. In winter, warm air stays inside and cold air stays outside, reducing the building’s heating costs and avoiding uncomfortable drafts for diners sitting near the door.
You could also have a vestibule inside the restaurant’s regular doors, but that would occupy valuable floor space, and would be useless during warmer seasons. The temporary vestibule can be put up in winter and taken down in summer.
While I do not know what they are called, their purpose is to keep heat inside by creating an extra air chamber between the inside which is heated and the outside. These are usually removed in the warmer months.
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Credit:stackoverflow.com‘
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