Frequency of testing of safety features of revolving doors forming part of a means of egress in buildings.

This also applies to the testing of doors in the path of exit travel of vestibules or stair shafts that are pressurized as a means of smoke control, in high buildings as defined in Sentence 3.2.6.1.(1) of the National Building Code, to ensure that these doors can be operated when the entire smoke control system is being tested, as stated in Sentence 7.3.1.2.(1).

To exempt revolving doors from the once a month testing requirements of Sentence 2.7.2.1.(1) on the basis that:

• these doors are generally frequently used [as main entrances and in primary egress routes] and a deficiency would be expected to be readily corrected, and
• a yearly check is required.

This [the yearly check] is to limit the probability that the doors will not operate properly in an emergency situation, which could lead to delays in evacuation or movement to a safe place, which could lead to harm to persons.