Notes: 1. A fire compartment area/volume in excess of that given above will be dealt with on individual merits giving full consideration to enhance means of escape, means of access for firefighting and rescue, fire service installations and fire resisting construction so as to achieve an equivalent level of fire safety. 2. Different Use Classifications should be separated in accordance with Subsection C7. 3. Special hazards should be separated in accordance with Subsection C13. 4. For any use not covered by Table C1, the FRR required will be determined by the Building Authority having regard to the fire load, hazard level and other relevant fire safety provisions of the building. 5. For Use Classification 1 – Residential, each flat should be separated from adjoining flats by fire barriers. 6. For Use Classification 2 – Hotel, each guestroom should be separated from the adjoining guestrooms and other Use Classifications by fire barriers.Clause C4.2The FRR required for the elements of construction, components and fire barriers should satisfy one or more criteria of stability, integrity or insulation, related to various methods of exposure as specified in Table C2 when tested in accordance with Part E.Clause C4.3Where a single-storey building does not exceed 7,000m³ in volume and 7.5m in height, any steelwork construction may be unprotected, provided that the building is separated from any adjoining building or the site boundary by a clear unobstructed open space not less than 6m in width. Where columns and beams are in an external wall, protection against corrosion may be necessary and should be separately considered.