TB 054 - Hazardous/Illegal Mezzanines

Question 1

If a building with a mezzanine is fully sprinklered where must sprinkler be installed?

Answer 1

Above and beneath any mezzanine

Question 2

How should overloaded mezzanine conditions be treated?

Answer 2

As immediate life hazards

Question 3

What is a mezzanine or mezzanine floor?

Answer 3

An intermediate floor placed in any story or room.

Question 4

When is a mezzanine considered an additional “story” in a building

Answer 4

When the area of the mezzanine exceeds 33-1/3 percent of the total floor area in that room

Question 5

The clearance height above and below a mezzanine shall not be ______?

Answer 5

less than 7 feet

Question 6

There shall not be more than how many levels of mezzanine in a room?

Answer 6

Not more than 2 levels

Question 7

Is theres limitation on the number of mezzanines within a room?

Answer 7

No limitation

Question 8

____ portions of a mezzanine shall be open to the room in which it is located.

Answer 8

All

Question 9

Railing on a mezzanine should not be more than how many inches in height

Answer 9

42” in height

Question 10

Partitioning may be installed, provided the aggregate floor area of the enclosed space does not exceed _____ percent of the area of the mezzanine or have and occupant load exceeding ____, whichever is greater.

Answer 10

1. 10%
2. 10 occupants

Question 11

Mezzanines having _____ or more exits need not open into the the story in which they are located, provided at least one of the exits gives direct access to a protected exit corridor, an exit court, enclosed exit stairway, exterior exit, exterior balcony, or exit passageway

Answer 11

two or more exits

Question 12

Two exits shall be provided from mezzanines having an occupant load of more than _____ or when they area of the mezzanine exceeds _____ square feet, whichever is the more restrictive.

Answer 12

1. 10 occupants
2. 2,000 square feet

Question 13

The occupant load of the mezzanine shall be added to the occupant load of the _____ or ____ in which it is located

Answer 13

Story or Room

Question 14

For a sprinklered building with sprinklers extending beneath the mezzanine, a notice shall be issued directing the removal of all __________ beneath the mezzanine and notifications shall be made to the ________

Answer 14

1. Combustible Materials
2. Fire Prevention Bureau

Question 15

For mezzanines which do not appear to be adequate to support the weight of storage, a ________ Notice requiring “forthwith” compliance shall be issued for removal of storage to a weight which is a safe structural load; and notification shall be made to the ________

Answer 15

1. Fire/Line Safety Violation Notice
2. Fire Prevention Bureau

Question 16

Any questions concerning mezzanines may be telephoned to whom?

Answer 16

The North Industrial and Commercial Section Unit of the Fire Prevention Bureau