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Legend: Explanations & Illustrations Rationale Note Revision history Print

This chapter specifies the requirements peculiar to buildings of respective purpose groups. These requirements shall be read in conjunction with those stipulated in Chapter 1 to 8 of this Code. 

9.1 PURPOSE GROUP I OCCUPANCY

9.1.1 General

a. Means of escape

(1) Single household dwelling

E

Buildings under PG I can consist of more than three floors if they are occupied as a single household dwelling.

(2) Basement levels

E

For PG I building which has four or more levels (including the basement levels and attics), the basement levels shall discharge directly to the external space at grade level.

(3) Access staircases

E

Means of escape for a building or a separate part of a building of single occupancy of PG I can be provided via access staircases, and exit staircase under the provision of Cl.2.3 is not required.

b. Structural fire precautions

(1) Attic floor

An attic in buildings under PG I can be constructed of timber boarding on timber joists, provided it is protected to achieve the fire resistance rating required of the elements of structure of the building or compartment.

(2) Floor over a basement

E

For PG I building which has four or more levels (including the basement storeys and attics), the floor immediately over the basement storeys shall be compartmented by compartment walls/floors. Where there is an internal connection between the basement storeys and upper levels, it shall be compartmented by a fire-rated door at the 1st storey landing.