TB 054 - Hazardous/Illegal Mezzanines

Question 1

FIREFIGHTING CONCERNS

Has the mezzanine been legally constructed with a permit from the Department of

Answer 1

Building and safety

Question 2

FIREFIGHTING CONCERNS

A fully sprinklered building must have sprinklers installed Where?

Answer 2

Above and beneath any mezzanine

Question 3

FIREFIGHTING CONCERNS

What may lead to premature mezzanine collapse under fire conditions?

Answer 3

Overloaded storage conditions

Question 4

intermediate floor placed in any story or room.

Answer 4

Mezzanine

Question 5

When the total area of any such mezzanine floor exceeds ____percent of the total floor area in that room, it shall be considered as constituting an additional “story” in the building.

Answer 5

33 1/3 percent

Question 6

The clear height above or below a mezzanine floor construction shall be not less than

Answer 6

7 feet

Question 7

fire-resistive time period need not exceed ___ ____ for unenclosed mezzanines

Answer 7

One hour

Question 8

How many levels of mezzanines can be in a room

Answer 8

Not more than two

Question 9

Is there a limit to the number of mezzanines within a room

Answer 9

No limitation

Question 10

The aggregate area of mezzanines within a room shall not exceed ___ ___ the area of the room in which they are located.

Answer 10

One- third

Question 11

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

Answer 11

Open

Question 12

The side of the mezzanine which is open to the room shall be unobstructed except for columns, posts and protective walls, or railings not more than __ inches in height.

Answer 12

42 inches

Question 13

EXCEPTIONS:

a) 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 an occupant load exceeding ____, whichever is greater.

Answer 13

10 percent
Or exceeding 10

Question 14

exceptions:

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

Answer 14

Two or more

Exit corridor
Exit court
Exit stairway
Exit balcony

Question 15

exceptions:

In industrial facilities, mezzanines used for control equipment may be ______ on all sides

Answer 15

Glazed

Question 16

Exceptions

___ ____ shall be provided from mezzanines having an occupant load of more than ten or when the area of the mezzanine exceeds _______ square feet, whichever is the more restrictive.

Answer 16

Two exits

2,000sqft

Question 17

EXCEPTION

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

Answer 17

Story or room

Question 18

If a violation of a code or ordinance enforced by an agency other than the Fire Department constitutes a fire hazard, a notice shall be issued citing 57.20.16 of the _____ _____ for the abatement of the hazard.

Answer 18

Fire code

Question 19

For sprinklered buildings without sprinklers extending beneath the mezzanine, a notice shall be issued directing the removal of all ______ _______ beneath the mezzanine and notification shall be made to the _________________

Answer 19

Combustible materials
Fire prevention bureau

Question 20

For mezzanines which do not appear to be adequate to support the weight of storage, a Fire/Life Safety Violation Notice requiring “_______” compliance shall be issued for removal of storage to a weight which is a safe structural load; and notification shall be made to the Fire Prevention Bureau.

Answer 20

Forthwith

Question 21

Any questions concerning mezzanines may be telephoned to the ______ _______ and _________ Section Unit of the Fire Prevention Bureau.

Answer 21

North industrial and commercial section