3.2.2.57 — Group E, Any Height, Any Area, Sprinklered

(1) Unless otherwise permitted by Articles 3.2.2.20. to 3.2.2.83., a roof assembly in a building up to 2 storeys in building height is permitted to be of heavy timber construction regardless of building area or type of construction required, provided the building is sprinklered. (2) If Sentence (1) permits a roof assembly to be of heavy timber construction, structural members in the storey immediately below the roof assembly are permitted to be of heavy timber construction.

(1) A building classified as Group E is permitted to conform to Sentence (2) provided, (a) except as permitted by Sentence 3.2.2.7. (1), the building is sprinklered, (b) it is not more than 4 storeys in building height, and (c) it has a building area not more than 1 800 m2. (2) The building referred to in Sentence (1) is permitted to be of combustible construction or noncombustible construction used singly or in combination, and, (a) floor assemblies shall be fire separations with a fire-resistance rating not less than 1 h, (b) mezzanines shall have a fire-resistance rating not less than 1 h, and (c) loadbearing walls, columns and arches shall have a fire-resistance rating not less than that required for the supported assembly.

(1) A building classified as Group E is permitted to conform to Sentence (2) provided, (a) it is not more than 3 storeys in building height, and (b) it has a building area not more than the value in Table 3.2.2.59. (2) The building referred to in Sentence (1) is permitted to be of combustible construction or noncombustible construction used singly or in combination, and, (a) floor assemblies shall be fire separations with a fire-resistance rating not less than 45 min, (b) mezzanines shall have, if of combustible construction, a fire-resistance rating not less than 45 min, (c) roof assemblies shall have a fire-resistance rating not less than 45 min, except that in a building not more than 1 storey in building height, the fire-resistance rating is permitted to be waived provided the roof assembly is of noncombustible construction or is constructed as a fire-retardant treated wood roof system conforming to Article 3.1.14.1., (d) loadbearing walls, columns and arches supporting an assembly required to have a fire-resistance rating shall, (i) have a fire-resistance rating not less than 45 min, or (ii) be of noncombustible construction, and (e) loadbearing walls, columns and arches supporting a fire separation shall have a fire-resistance rating not less than that required for the fire separation.

(1) A building classified as Group E is permitted to conform to Sentence (2) provided, (a) except as permitted by Sentence 3.2.2.7. (1), the building is sprinklered, (b) it is not more than 3 storeys in building height, and (c) it has a building area not more than, (i) 7 200 m2 if 1 storey in building height, (ii) 3 600 m2 if 2 storeys in building height, or (iii) 2 400 m2 if 3 storeys in building height. (2) The building referred to in Sentence (1) is permitted to be of combustible construction or noncombustible construction used singly or in combination, and, (a) floor assemblies shall be fire separations with a fire-resistance rating not less than 45 min, (b) mezzanines shall have, if of combustible construction, a fire-resistance rating not less than 45 min, (c) loadbearing walls, columns and arches supporting an assembly required to have a fire-resistance rating shall, (i) have a fire-resistance rating not less than 45 min, or (ii) be of noncombustible construction, and (d) loadbearing walls, columns and arches supporting a fire separation shall have a fire-resistance rating not less than that required for the fire separation.

(1) A building classified as Group E is permitted to conform to Sentence (2) provided, (a) it is not more than 2 storeys in building height, and (b) it has a building area not more than the value in Table 3.2.2.61. (2) The building referred to in Sentence (1) is permitted to be of combustible construction or noncombustible construction used singly or in combination, and, (a) floor assemblies shall be fire separations with a fire-resistance rating not less than 45 min, and (b) loadbearing walls, columns and arches shall have a fire-resistance rating not less than that required for the supported assembly.

(1) A building classified as Group E is permitted to conform to Sentence (2) provided, (a) except as permitted by Sentence 3.2.2.7. (1), the building is sprinklered, (b) it is not more than 2 storeys in building height, and (c) it has a building area not more than, (i) 3 000 m2 if 1 storey in building height, or (ii) 1 800 m2 if 2 storeys in building height. (2) The building referred to in Sentence (1) is permitted to be of combustible construction or noncombustible construction used singly or in combination, and, (a) floor assemblies shall be fire separations with a fire-resistance rating not less than 45 min, and (b) loadbearing walls, columns and arches shall have a fire-resistance rating not less than that required for the supported assembly.

(1) Except as permitted by Article 3.2.2.8. and Sentences 3.2.2.42A. (4), 3.2.2.43A. (5), 3.2.2.49A. (3) and 3.2.2.50A. (4), in a building in which one major occupancy is located entirely above another major occupancy, the requirements in this Subsection for each portion of the building containing a major occupancy shall apply to that portion as if the entire building was of that major occupancy. (2) If one major occupancy is located above another major occupancy, the fire-resistance rating of the floor assembly between the major occupancies shall be determined on the basis of the requirements of this Subsection for the lower major occupancy. (3) For the purposes of Sentences (1) and (2), a retirement home is deemed to be a separate major occupancy.