3.1.13.6. Corridors

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3.1.13.6. Corridors

1) Except as permitted by Sentence (2) and (3), the flame-spread rating shall be not more than 75 for the interior wall finish of

a) a public corridor,

b) a corridor used by the public in an assembly occupancy, or

c) a corridor serving classrooms.

2) The flame-spread rating for corridors specified in Sentence (1) is permitted to be waived, provided the flame-spread rating is not more than

a) 25 on the upper half of the wall, and

b) 150 on the lower half of the wall

3) Where the floor area is sprinklered, the flame-spread ratings for corridors specified in Sentence (1) and (2) shall be not more than 150

4) the flame-spread ratings specified in Sentence (1), (2) and (3) apply to occupancies in the corridor as well as to the corridor itself.

5) except as provided in Sentence (6), the interior ceiling finish of corridors and occupancies referred in Sentence (1) and (4) shall have a flame-spread rating not more than 25.

6) Where the floor area is sprinkelered throughout, the flame-spread rating of the interior ceiling finish of corridors and occupancies referred in Sentence (1) and (4) shall be not more than 150.

Question:

When are decorative wood finishes permitted in a public corridor?

Please have your answer by comments.

3.1.13.5. Skylights

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3.1.13.5. Skylights

1) Individual combustible skylights in a corridor that is required to be separated from the remainder of the building by a fire separation shall be not more than 1 sqm in area and not less than 1.2 m apart.

Question:

What is the minimum distance between skylights in a public corridor?

Please have your answer by comments.

3.1.10.7. Combustible Projections

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3.1.10.7. Combustible Projections

1) Combustible material shall not extend across the end of a firewall but is permitted to extend across a roof above a firewall that is terminated in conformance with the Sentence 3.1.10.3.(2).

2) If buildings are separated by a firewall, combustible projections on the exterior of one building, including balconies, platforms, canopies, eave projections and stairs, That extend outward beyond the end of the firewall, shall not be permitted within 2.4m of combustible projections and window or door openings of the adjacent buildings.

Question:

When is combustible material permitted to extend across a roof above a firewall?

3.1.10.4 Parapets

 3.1.10.4 Parapets

1) Except as permitted by Sentences (2) and 3.1.10.3.(2), a firewall shall extend above the roof surface to form a parapet not less than

a) 150 mm high for a firewall required to have a fire-resistance rating not less than 2h

b) 900 mm high for a firewall required to have a fire-resistance rating not less than 4h

2) A firewall that separates 2 buildings with roofs at different elevations need not extend above the upper roof surface to form a parapet, provided the difference in elevation between the roofs is more than 3m.

Question:

What will you be looking for to determine if a building is separated by a firewall?

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3.1.9.6. Openings through a Membrane Ceiling

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3.1.9.6. Openings through a Membrane Ceiling

1) A membrane ceiling forming part of an assembly assigned a fire-resistance rating on the basis of Appendix D is permitted to be penetrated by openings leading into ducts within the ceiling space, provided

a) the ducts are sheet steel, and

b) the number of openings and their protection conform to the requirements of Appendix D

Question:

Are recessed lighting fixtures are permitted to penetrate the membrane ceiling with fire resistance rating?

Please leave your answer by comments.

3.2.3.19. Walkway between Buildings

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3.2.3.19. Walkway between Buildings

1) Except as required by Sentence 3.2.3.20.(2), if buildings are connected by a walkway, each building shall be separated from the walkway by a fire separation with a fire resistance rating not less than 45min.

Question: Is walkway a public corridor?

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3.4.4.4. Integrity of Exits

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3.4.4.4. Integrity of Exits

6) An exit shall be designed for no purpose other than for exiting, except that an exit is permitted also to be designed to serve as an access to a floor area.

Question:

Does an entrance to a building have to be an exit?

Please leave your answer by comments.

3.1.8.14. Hold Open Devices

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3.1.8.14. Hold Open Devices

1) Except as provided in Sentence 3.1.8.10. (2) and 3.1.8.11. (3), a hold-open device is permitted to be used on a closure in a required fire separation, other than on an exit stair door in a building more than 3 storeys in building height and on a door for a vestibule required by 3.3.5.7., provided the device is designated to release the closure in conformance with this Article.

3.1.8.13. Self-closing Devices

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3.1.8.13. Self-closing Devices

1) Except as permitted by Sentence (2), every door in a fire separation, other than doors to freight elevators and dumbwaiters, shall be equipped with a self-closing device designated to return the door to the closed position after each use.

2) A self-closing device need not be provided on a door that is located between

a) a classroom and a corridor providing access to exit from the classroom in a building that is not more than 3 storeys in building height,

b) a public corridor and an adjacent room of business and personal service occupancy in a building that is not more than 3 storeys in building height provided the door is not located in a dead-end portion of the corridor,

c) a patients' sleeping room and a corridor serving the patients' sleeping room, provided the room and corridor are within a fire compartment in a hospital or nursing home with treatment that complies with the requirements of Article 3.3.3.5., or

d) a patients' sleeping room and an adjacent room that serves the patients' sleeping room, provided these rooms are within a fire compartment in a hospital or nursing home with treatment that complies with the requirements of Article 3.3.3.5.

3.1.8.7. Location of Fire Dampers and Smoke Dampers

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3.1.8.7. Location of Fire Dampers and Smoke Dampers

1) Except as provided in Article 3.1.8.8., a fire damp having a fire protection rating conforming to Sentence 3.1.8.4.(2) shall be installed in conformance with Article 3.1.8.10. in ducts or air-transfer openings that penetrate an assembly required to be a fire separation.

2) Except as provided in Article 3.1.8.9., a smoke damper or a combination smoke/fire damper shall be installed in conformance with Article 3.1.8.11. in ducts or air-transfer openings that penetrate an assembly required to be a fire separation, where the fire separation

a) separates a public corridor,

b) contains an egress door refereed to in Sentence 3.4.2.4.(2)

c) serves an assembly, care, treatment, detention or residential occupancy, or

d) is installed to meet the requirements of Clause 3.3.1.7.(1)(b) or Sentence 3.3.3.5.(4).