Content Page: Model Building By Laws

  • Service-Shafts

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    (1) The provisions of this section shall not apply to shafts in dwelling-houses or to shafts enclosing stairways, air-ducts, incinerator-chutes, flues and ramps connecting storeys in buildings. (2) All lift-shafts and hoist-shafts in a building shall be enclosed by walls having a fire-resistance rating of not less than on and a half hours. In such…

  • Openings In External Walls

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    (1) Places of worship not exceeding three storeys in height, dwelling-houses and open-air parking-garages shall be excluded from the provisions of this section. (2) In this section, “opening” shall mean any portion of an external wall which has a lower fire-resistance rating than that prescribed in this Chapter for such wall, but shall not include…

  • Occupancy-Separation Structures And Tenancy-Separation Structures

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    (1) Occupancy-separation structures and tenancy-separation structures shall comply with the requirements of this section. (2) Fire-resistance ratings. – All occupancy-separation structures shall be constructed of non-combustible material, and such occupancy-separation structures and all tenancy-separation structures shall have fire-resistance ratings of not less than the ratings specified in Table XI. TABLE XIFIRE_RESISTANCE RATINGS OF OCCUPANCY-SEPARATION STRUCTURES…

  • Division_Walls And Division_Floors

    —

    (1) Where a building is divided into divisions, as required by section 6, all division-walls and division-floors shall comply with the requirements of this section. (2) Fire-resistance rating. – Every division-wall and every suspended floor which is a division-floor shall be of non-combustible material, and shall have a fire-resistance rating of not less than four…

  • Fire_Resistance Rating Of Supporting Structural Member

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    All supporting structural members in buildings shall have a fire-resistance rating of not less than the required rating of the construction supported by such members.

  • Particular Requirements For Grade D Construction

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    (1) Grade D construction means construction complying with the particular requirements of this section. (2) Walls and structural frames. – All external walls which have roofs covered with thatch or wooden shingles shall be of non-combustible materials, and except where otherwise provide in subsection (3), all bearing-walls or structural frames shall have a fire-resistance rating…

  • Particular Requirements For Grade C Construction

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    (1) Grade C construction means construction complying with the particular requirements of this section. (2) Structural members. – Except as otherwise provided in subsections (3) and (4), all structural members shall have fire-resistance ratings of not less than the following— a) occupancy-units with high fire-load, one hour; b) occupancy-units with moderate fire-load, half an hour;…

  • Particular Requirements For Grade B Construction

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    (1) Grade B construction means construction complying with the particular requirements for this section. (2) Structural members. – Except as otherwise provided in subsections (3) and (5), all structural members shall have fire-resistance ratings of not less than the ratings specified in Table V. TABLE VFIRE_RESISTANCE RATINGS OF STRUCTURAL MEMBERS FOR GRADE B CONSTRUCTION (3)…

  • Maximum Cubic Capacity Of Divisions

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    (1) All buildings with a capacity greater than is permitted for a division under Table I shall be subdivided into divisions, and no such division shall have a greater cubic capacity than is permitted in that Table. (2) Such cubic capacity may be measured exclusive of the thickness of the containing walls or floor-slabs, and…

  • Separation Of Occupancy-Units And Tenancy-Units

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    (1) Except as provided in subsection (3), every occupancy-unit and every portion of an occupancy-unit occupied by a separate tenant shall be separated by means of an occupancy-separation structure or a tenancy-separation structure, as the case may be, complying with section 13, from any adjoining occupancy-unit or portion thereof, as the case may be. (2)…