nitramnaed
Sawhorse
Quoting from the 2015 IECC about vestibules:
"C402.5.7 Vestibules. Building entrances shall be protected
with an enclosed vestibule, with all doors opening into and out
of the vestibule equipped with self-closing devices. Vestibules
shall be designed so that in passing through the vestibule
it is not necessary for the interior and exterior doors to
open at the same time. The installation of one or more
revolving doors in the building entrance shall not eliminate
the requirement that a vestibule be provided on any doors
adjacent to revolving doors.
Exceptions: Vestibules are not required for the following:
1. Buildings in Climate Zones 1 and 2.
2. Doors not intended to be used by the public,
such as doors to mechanical or electrical equipment
rooms, or intended solely for employee use.
3. Doors opening directly from a sleeping unit or
dwelling unit.
4. Doors that open directly from a space less than
3,000 square feet (298 m2) in area.
5. Revolving doors.
6. Doors that have an air curtain with a velocity of
not less than 6.56 feet per second (2 m/s) at the
floor that have been tested in accordance with
ANSI/AMCA 220 and installed in accordance
with the 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"
My question is on the word "SPACE". I've always interpreted this to mean the room you are entering. I have a 5000 square foot retail space thats divided up into different rooms (Office, storage, toilet rooms, etc) making the display area less than 3000 square feet. The AHJ is saying that space means the entire leased premise, I disagree.
Comments?
Thanks!
"C402.5.7 Vestibules. Building entrances shall be protected
with an enclosed vestibule, with all doors opening into and out
of the vestibule equipped with self-closing devices. Vestibules
shall be designed so that in passing through the vestibule
it is not necessary for the interior and exterior doors to
open at the same time. The installation of one or more
revolving doors in the building entrance shall not eliminate
the requirement that a vestibule be provided on any doors
adjacent to revolving doors.
Exceptions: Vestibules are not required for the following:
1. Buildings in Climate Zones 1 and 2.
2. Doors not intended to be used by the public,
such as doors to mechanical or electrical equipment
rooms, or intended solely for employee use.
3. Doors opening directly from a sleeping unit or
dwelling unit.
4. Doors that open directly from a space less than
3,000 square feet (298 m2) in area.
5. Revolving doors.
6. Doors that have an air curtain with a velocity of
not less than 6.56 feet per second (2 m/s) at the
floor that have been tested in accordance with
ANSI/AMCA 220 and installed in accordance
with the 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"
My question is on the word "SPACE". I've always interpreted this to mean the room you are entering. I have a 5000 square foot retail space thats divided up into different rooms (Office, storage, toilet rooms, etc) making the display area less than 3000 square feet. The AHJ is saying that space means the entire leased premise, I disagree.
Comments?
Thanks!