Revolving Doors Reduce Wind Tunnel Issues at Mt. Sinai Hospital

Revolving door installations reduces wind tunnel issues within the three entrance public corridor into the hospital’s main entrance.

Revolving door installations reduces wind tunnel issues within the three entrance public corridor into the hospital’s main entrance.

Boon Edam Inc. has announced that Mt. Sinai Hospital in Toronto has achieved success in reducing wind tunnel issues within its three entrance public corridor into the hospital’s main entrance. Dor-Control Craftsmen Ltd. installed the entrances and oversees on-going maintenance needs.

Sinai Health System is comprised of Mount Sinai Hospital, Joseph & Wolf Lebovic Health Complex; Bridgepoint Active Healthcare; Circle of Care; the Lunenfeld-Tanenbaum Research Institute, and is a full affiliate of the University of Toronto.

Toronto is known for cold and blustery winter months. Prior to February 2016, Mt. Sinai Hospital employees, patients, and visitors often had to endure freezing wind tunnel conditions within a street level entrance corridor linking University and Murray Streets. Wind conditions could be so severe that employees using an employee-designated swinging entrance at times could not manually open that door.

“On the hospital’s main floor,” explains Tony Khouri, vice president, Facilities and Capital Development, “there is a corridor between University and Murray Streets. Formerly, we had double sliding doors at each entrance, and because of the high foot traffic we had lots of problems with blasts of cold air running up and down the corridor.” The corridor not only connects the two streets to the main entrance of the hospital, it also has retail and other shops located along its length.

The hospital engaged an expert about renovating the entrances, and the consultant recommended installing revolving doors to stop the infiltration of air. In a bid process, Boon Edam revolving doors were selected.

Users of the hospital entrance area averages about 1,000 per hour.

Users of the hospital entrance area averages about 1,000 per hour.


“Compared to other hospitals, we have a high number of users for these entrances, averaging 1000 per hour,” says Khouri. Mt. Sinai installed a 16-foot diameter, dual-wing Duotour at Murray St., the larger of the two main entrances. This entrance is accessible for patients arriving or leaving by car, and can accommodate wheel chairs and patients on stretchers. The smaller entrance, University St., is accessed up a flight of stairs and has been fitted with a 12-foot diameter, two-wing Duotour. Both entrances also maintain one set of push-button activated sliding doors alongside the revolving doors to conform with the Ontario Disabilities Act and for emergency egress. A third, 8-foot diameter, four-wing, BoonAssist TQ manual revolving door is installed at the employee entrance, thereby eliminating the stuck door problem experienced when it was a manual swinging door.

The Boon Edam Duotour is an automatic revolving door. When an entry needs to channel the flow of visitors in high numbers at peak times, or those accompanied by carts, wheelchairs or hospital gurneys, the Duotour two-wing automatic revolving door is often the solution. Due to the relatively large size of its two compartments compared to 3- or 4-wing doors, the Duotour can channel a high capacity of traffic while having a small footprint.

“We try to monitor the sliding door use as much as possible, but we still have some gusting issues,” says Khouri. The revolving doors are the best solution, given our space and property limitations, and these entrances have cut our wind tunnel effect by 60-70 percent. I believe that the revolving doors are a big factor in that improvement. The Boon Edam revolving doors are of good quality, and they are helping us achieve our entrance and comfort goals.”

Dor-Control Craftsmen

“Dor-Control Craftsmen’s 50 years of experience in the industry enabled us to partner with Boon Edam to create a solution tailored to the needs of Mount Sinai Hospital. Our knowledge and expertise allows us to appreciate each business challenge and to support our clients with solutions for all types of entrances. Our commitment to Mount Sinai Hospital, and to healthcare facilities across the globe, ensures the continuous performance, safety and convenience of its entrances,” comments Michael Manocchio, sales manager, Dor-Control Craftsmen Ltd.

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