Revolving Doors


Revolving doors can be up to eight times more energy efficient than their hinges counterparts - all the while allowing large numbers of people to pass in and out, boosting security, and adding architectural interest. On other words, not only can revolving doors efficiently handle bi-directional pedestrian traffic and reduce energy costs by maintaining airlock, but they can also improve comfort for building occupants and offer more usable space at entrances compared to vestibules.

in 2006, a team of graduate students at the Massachusetts Institute of Technology (MIT) conducted an analysis of door use in one building on campus. They found that only 23 percent of visitors used the revolving doors. According to MIT's calculations. the swinging doors allowed as much as eight times more air to pass through the building than the revolving door.

The April 2009 MIT Talk Tech publication stated:
"students indicated that if everyone were to use revolving doors in this one building alone, MIT would save almost $7,500.00 in natural gas a year. That's enough to heat five houses over the same timeframe, and it also adds up to nearly 15 tons of CO2."

Key Elements in Revolving Door Design

Facade:
Revolving doors are an opportunity to enhance the dramas of a building facade.

Connections to Building:
Revolving doors can be connected to buildings at the mid-post, throat opening and in several keyhole configurations.

Dimensional Elements:
The diameter of the door, the width of vertical styles and the height of the door opening, canopy, sidewall enclosure base and bottom rail can be optimized to create the desired look and complement surrounding building elements and doors.

Security:
Security against human and natural hazards is a growing concern. Revolving doors offer a variety of night locking options that can ensure the building is securely closed during non-operating hours. Doors can be locked from remote locations and access control systems can be integrated with the doors.


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