9.10.13. Doors, Dampers and Other Closures in Fire Separations
9.10.13.
Doors, Dampers and Other Closures in Fire Separations
9.10.13.1.
Closures
1) Except as provided in Article 9.10.13.2., openings in required fire separations shall be protected with a closure conforming to Table 9.10.13.1. and shall be installed in conformance with Chapters 2 to 14 of NFPA 80, "Fire Doors and Other Opening Protectives," unless otherwise specified herein. (See also Article 9.10.3.1.)
Table 9.10.13.1.
Fire-Protection Ratings for Closures
Forming Part of Sentence 9.10.13.1.(1)
Notes to Table 9.10.13.1.:
(1) See Article 9.10.13.2.
9.10.13.2.
Solid Core Wood Door as a Closure
A 45 mm thick solid core wood door is permitted to be used where a minimum fire-protection rating of 20 min is permitted or between a public corridor and a suite provided that the door conforms to CAN/ULC-S113, "Wood Core Doors Meeting the Performance Required by CAN/ULC-S104 for Twenty Minute Fire Rated Closure Assemblies." (See Note A-9.10.13.2.(1).)
Doors described in Sentence (1) shall have not more than a 6 mm clearance beneath and not more than 3 mm at the sides and top.
9.10.13.3.
Unrated Wood Door Frames
Doors required to provide a 20 min fire-protection rating or permitted to be 45 mm solid core wood shall be mounted in a wood frame of not less than 38 mm thickness where the frame has not been tested and rated.
9.10.13.4.
Doors as a Means of Egress
Doors forming part of an exit or a public means of egress shall conform to Subsection 9.9.6. in addition to this Subsection.
9.10.13.5.
Wired Glass as a Closure
Wired glass conforming to Article 9.6.1.2. which has not been tested in accordance with Article 9.10.3.1. is permitted as a closure in a vertical fire separation required to have a fire-resistance rating of not more than 1 h provided such glass is not less than 6 mm thick and is mounted in conformance with Sentence (2).
Wired glass described in Sentence (1) shall be mounted in fixed steel frames having a metal thickness of not less than 1.35 mm and a glazing stop of not less than 20 mm on each side of the glass.
Individual panes of glass described in Sentence (1) shall not exceed 0.8 m2 in area or 1.4 m in height or width, and the area of glass not structurally supported by mullions shall not exceed 7.5 m2.
9.10.13.6.
Steel Door Frames
Steel door frames forming part of a closure in a fire separation, including anchorage requirements, shall conform to CAN/ULC-S105, "Fire Door Frames Meeting the Performance Required by CAN/ULC-S104."
9.10.13.7.
Glass Block as a Closure
Glass block that has not been tested in accordance with Article 9.10.3.1. is permitted as a closure in a fire separation required to have a fire-resistance rating of not more than 1 h. (See Article 9.20.9.6.)
9.10.13.8.
Maximum Size of Opening
The size of an opening in an interior fire separation, even where protected with a closure, shall not exceed 11 m2, with no dimension greater than 3.7 m, when the fire compartments on both sides of the fire separation are not sprinklered.
The size of an opening in an interior fire separation, even where protected with a closure, shall not exceed 22 m2, with no dimension greater than 6 m, when the fire compartments on both sides of the fire separation are sprinklered.
9.10.13.9.
Door Latch
Every swing type door in a fire separation shall be equipped with a latch.
9.10.13.10.
Self-closing Device
Except as described in Sentence (2), every door in a fire separation shall have a self-closing device.
Self-closing doors are not required between public corridors and suites in business and personal services occupancies, except in dead-end corridors.
9.10.13.11.
Hold-Open Devices
Where hold-open devices are used on doors in required fire separations, they shall be installed in accordance with Article 3.1.8.14.
9.10.13.12.
Service Room Doors
Swing-type doors shall open into service rooms containing fuel-fired equipment where such doors lead to public corridors or rooms used for assembly but shall swing outward from such rooms in all other cases.
9.10.13.13.
Fire Dampers
Except as permitted by Sentences (2) to (5) and Sentence 9.10.5.1.(4), a duct that penetrates an assembly required to be a fire separation with a fire-resistance rating shall be equipped with a fire damper in conformance with Articles 3.1.8.4. and 3.1.8.10.
A fire damper is not required where a noncombustible branch duct pierces a required fire separation provided the duct
has a melting point not below 760°C,
has a cross-sectional area less than 130 cm2, and
supplies only air-conditioning units or combined air-conditioning and heating units discharging air at not more than 1.2 m above the floor.
A fire damper is not required where a noncombustible branch duct pierces a required fire separation around an exhaust duct riser in which the airflow is upward provided
the melting point of the branch duct is not below 760°C,
the branch duct is carried up inside the riser not less than 500 mm, and
the exhaust duct is under negative pressure as described in Article 9.10.9.18.
Noncombustible ducts that penetrate a fire separation separating a vertical service space from the remainder of the building need not be equipped with a fire damper at the fire separation provided
the ducts have a melting point above 760°C, and
each individual duct exhausts directly to the outside at the top of the vertical service space.
A duct serving commercial cooking equipment and piercing a required fire separation need not be equipped with a fire damper at the fire separation. (See also Article 6.3.1.7.)
activate at a temperature approximately 30°C above the normal maximum temperature that occurs in the ducts, whether the air duct system is operating or shut down.
9.10.13.15.
Doors between Garages and Dwelling Units
A door between an attached or built-in garage and a dwelling unit shall be tight fitting and weather-stripped to provide an effective barrier against the passage of gas and exhaust fumes and shall be fitted with a self-closing device.
A doorway between an attached or built-in garage and a dwelling unit shall not be located in a room intended for sleeping.
9.10.13.16.
Door Stops
Where a door is installed so that it may damage the integrity of a fire separation if its swing is unrestricted, door stops shall be installed to prevent such damage.