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A-2 main exit door mullion

"Proabortion"? I think you mean prohibition.

Anyway, as long as you have the required width and the mullion will reduce that width.
 
ADAguy said:
Don't you mean "will not" reduce?
Click to expand...
No. If you have a two 36-inch door leaves in a single opening with no mullion, the egress width is approximately 67-68 inches. In that same opening, if you put a 2-inch mullion, the egress width is reduced by 2 inches to 65-66 inches.
 
Thanks for the help, and sorry for the spelling errors.

Mass had in previous editions of its code incorporated or amended the ICC to require 72-inch wide door without a mullion. in our current edition based on the 2015 IBC opted not to make that amendment.

I went back to the I Dig Hardware link and found this by searching emergence exit experiments and other articles there, it seems that the mullion may make exiting faster as people not want to go out 3 wide.
 
update found out the requirement for 6-foot door without mullion move to chapter 4 special occupancy, Mass amendment for A-2 night clubs, now to decipher the current definition of Night club, wah has been left out of the current Mass codes
 
Kind of vague

generally characterized by at least two o



NIGHT CLUB. An assembly occupancy with a high occupant load density that is generally characterized by at least two of the following: low lighting levels; music generating above-normal sound levels; nighttime operating hours; tables and seating that create ill-defined aisles; a specific area designated for dancing; or service facilities for beverages with limited food service. For night club construction requirements see section 430
 
Guess they did not watch the video


5 Main Exit

The main entrance egress system shall be sized such that the width of all required means of egress elements is a minimum of 72 inches (nominal) or as determined by section 1029.2, whichever is greater. The main entrance/exit door system shall consist of a pair of side-hinged swinging type doors without a center mullion and shall be equipped with panic hardware
 
cda said:
Kind of vague

generally characterized by at least two o



NIGHT CLUB. An assembly occupancy with a high occupant load density that is generally characterized by at least two of the following: low lighting levels; music generating above-normal sound levels; nighttime operating hours; tables and seating that create ill-defined aisles; a specific area designated for dancing; or service facilities for beverages with limited food service. For night club construction requirements see section 430
Click to expand...

citation, please
 
cda said:
Guess they did not watch the video


5 Main Exit

The main entrance egress system shall be sized such that the width of all required means of egress elements is a minimum of 72 inches (nominal) or as determined by section 1029.2, whichever is greater. The main entrance/exit door system shall consist of a pair of side-hinged swinging type doors without a center mullion and shall be equipped with panic hardware
Click to expand...

citation please
 
cda said:
Check it against the actual MASS. Building code::


https://up.codes/viewer/massachuset...quirements-based-on-use-and-occupancy#new_430
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That is true, however, nowhere does the 2015 IBC or the MA amendments define night club different from other A-2 uses. In the 8th edition, MA did amend the code to include a definition of night club, this is not four in the current 9th edition

MA 8th edition amendment
303.1.1 Definitions.
NIGHT CLUB. An occupancy generally characterized by a combination of any of the
following: no theatrical stage accessories other than raised platform; low lighting levels;
entertainment by a live band or recorded music generating above-normal sound levels; later-than
average operating hours; tables and seating arranged or positioned so as to create ill defined
aisles; a specific area designated for dancing; service facilities for alcoholic beverages with
limited food service; and high occupant load density.
 
TheCommish said:
That is true, however, nowhere does the 2015 IBC or the MA amendments define night club different from other A-2 uses. In the 8th edition, MA did amend the code to include a definition of night club, this is not four in the current 9th edition

MA 8th edition amendment
303.1.1 Definitions.
NIGHT CLUB. An occupancy generally characterized by a combination of any of the
following: no theatrical stage accessories other than raised platform; low lighting levels;
entertainment by a live band or recorded music generating above-normal sound levels; later-than
average operating hours; tables and seating arranged or positioned so as to create ill defined
aisles; a specific area designated for dancing; service facilities for alcoholic beverages with
limited food service; and high occupant load density.
Click to expand...


This says ninth edition, might confirm::



https://www.mass.gov/doc/780-cmr-ninth-edition-chapter-2-definitions/download
 
CDA

Well, I feel lost, swear I look at chapter 2 printed amendments ( i will have to check Tuesday) so either missed this totally or this is a version error,. Stay tuned
 
So now the next morning and I am making an appointment with my eye doctor and a reading specialist. As CDA pointed out the definition I was lookin for is in our amendments chapter 2 a clear definition of night club.

Thanks to all for the help and input
 
TheCommish said:
So now the next morning and I am making an appointment with my eye doctor and a reading specialist. As CDA pointed out the definition I was lookin for is in our amendments chapter 2 a clear definition of night club.

Thanks to all for the help and input
Click to expand...



You need to stop doing your code research at nightclubs where they have,,

low lighting levels; music generating above-normal sound levels; nighttime operating hours;

Especially if they have mullions
 
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