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Legend: Explanations & Illustrations Rationale Note Revision history Print

CLAUSE 3.6 SEPARATING WALLS

3.6.1 Requirements of separating walls

a. Every separating wall shall:

(1) form a complete barrier in the same continuous vertical plane through the full height between the buildings it separates, including roofs and basements and shall be without openings, except where permitted under Cl.3.6.2;

(2) have the appropriate fire resistance to comply with the requirements of Cl.3.3;

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(3) be constructed of non-combustible materials, together with any beam and column which form part of the wall and any structure which it carries; and

(4) not include glass fire-resisting walls.

b. Exception

Cl.3.6.1a.(1) need not be applied to wall between car porches of PG I buildings or wall between canopies over private enclosed spaces located on the grade level of PG II buildings. This exception shall not apply if the unprotected opening of the car porches/canopies fail to comply with the setback distance requirements from the other lot boundary.

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3.6.2 Openings in separating walls

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A separating wall shall have no openings except for:

a. a door required to provide a means of escape in the event of a fire, having the same fire resistance as that required for the wall and complying with Cl.3.9.2, or

b. a door provided for the purpose of public circulation and permitted by the SCDF, having the same fire resistance as that required for the wall and complying with Cl.3.9.2, or

c. an opening for the passage of a pipe complying with the relevant provisions of Cl.3.9.3.

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3.6.3 Roof junction

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A separating wall shall be either extended up to form a close joint with the underside of a pitched roof of non-combustible covering or extended up above the level of such roof covering. The junction between such separating wall and roof shall be properly fire-stopped so as not to render ineffective the resistance of such separating wall to prevent the spread of fire.

3.6.4 External wall junction

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If any external wall is extended across the end of a separating wall, such external wall and separating wall shall be bonded together or the junction of such walls shall be fire-stopped to comply with the requirements of Cl.3.12.

3.6.5 Prohibition of combustible materials in separating walls

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No combustible material shall be built into, extended through, across the ends of, or over the top of separating walls in such a way as to render ineffective the resistance of such separating walls to prevent the spread of fire.