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Air Curtains Approved Exception to Vestibule Rule   Publish Date: 11/11/2013

On Wednesday Oct. 9, 2013, the public comment hearing of the International Code Council (ICC) heard testimony and conducted voting for additions / changes to the 2012 edition of the International Energy Conservation Code (IECC). As a result, the following change will take place with regard to vestibule requirements.

C402.4.7 Vestibules. Exceptions: Vestibules are not required for the following:

6. Doors that have an AIR CUTRAIN with a minimum velocity of 2 m/s at the floor, have been tested in accordance with ANSI/AMCA 220 and installed in accordance with manufacturer’s instructions. Manual or automatic controls shall be provided that will operate the air curtain with the opening and closing of the door. Air curtains and their controls shall comply with Section C408.2.3

For more information on this code update and Powered Aire, visit: