Minor works related to Fire Safety Upgrading

Water Tanks for Fire Services

Water Tanks for Fire Services
Minor Works Item	Description
Class I Item 1.49	Erection/alteration of water tanks material of the water tank: Glass reinforced polyester located on grade or on a slab (other than a cantilevered slab) capacity of the tank ≤ 4.5m³ not fall within the MW item 2.3 or DEW item 3
Class II Item 2.3	Replacement of water tanks material of the water tank: Glass reinforced polyester located on a roof capacity of the tank ≤ 9m³ water head of the tank ≤ 2m distance from the edge of the roof ≤ 1.5m in accordance with the original design

Supporting Structures or Associated Metal Casings for Fire Services Installation (e.g. F.S. Pump Set and Water Tank)

Supporting Structures or Associated Metal Casings for Fire Services Installation (e.g. F.S. Pump Set and Water Tank)
Minor Works Item	Description
Class I Item 1.50	Erection/alteration of supporting structures or associated metal casings for a building services installation (BSI) the supporting structure or casing is located on-grade or on a roof (other than a cantilevered slab) for the supporting structure: height of the supporting structure ≤ 1.5m; for the casing: Weight ≤ 10% of the weight of the BSI Distance between inner surface of casing and installation ≤ 200mm apart in all directions not fall within the MW item 3.50
Class III Item 3.50	Erection/alteration of supporting structures or associated metal casings for a BSI the supporting structure or casing is located on-grade/on a roof (other than a cantilevered slab and an inaccessible roof) for the supporting structure: design weight capacity for a BSI ≤ 200kg; ≤ 100kg/m² of the ground or slab area height of the supporting structure ≤ 1.5m; for the casing: weight ≤ 10% of the weight of the BSI distance between inner surface of casing and installation ≤ 200mm apart in all directions

Fixed Lights or Top Vents

Fixed Lights or Top Vents
Minor Works Item	Description
Class I Item 1.6	Erection, alteration or removal of any protective barrier (within 1.1m from floor) (other than an external reinforced concrete wall or block wall) and the works do not result in any additional load to cantilevered slab
Class II Item 2.8	Construction, alteration, repair or replacement of windows or window walls highest point from ground: > 3.5 m - 100m the span of structural element of window or window wall ≤ 6m the works involve main frame or sub-frame of window or window wall (length of sub-frame > 1.2m) highest point from ground: > 100m the span of structural element of window or window wall > 6m for construction or alteration the area of the external wall opening for window or window wall ≤ 6m²; and the length of shorter side of the opening ≤ 1.8m for repair or replacement if not in accordance with the original design area of the external wall opening for the window ≤ 6m²; and length or width (whichever is shorter) of the opening ≤ 1.8m; or in accordance with the original design
Class III Item 3.6	Construction, alteration, repair or replacement of windows or window walls highest point from ground: ≤ 3.5m the span of structural element of window or window wall ≤ 6m highest point from ground: > 3.5m - 100m the works involve the sub-frame of window or window wall (length of sub-frame ≤ 1.2m)

External Non-Load Bearing Walls Openings for Fixed Lights, Top Vents or F.S. Pipes

External Non-Load Bearing Walls Openings for Fixed Lights, Top Vents or F.S. Pipes
Minor Works Item	Description
Class I Item 1.15	Erection/alteration/removal of external reinforced concrete walls height of the wall 1.1m - 3.5m not fall within the MW items 2.15, 3.45 or 3.46
Class II Item 2.13	Erection/alteration/removal of external reinforced concrete walls height of the wall ≤ 1.1m not fall within the MW items 3.45 or 3.46
Class II Item 2.14	Erection/alteration/removal of external block walls height of the wall 1.1m - 3.5m not fall within the MW items 3.45 or 3.46
Class III Item 3.11	Erection/alteration/removal of external block walls height of the wall ≤ 1.1m not fall within the MW items 3.45 or 3.46
Class III Item 3.45	Formation of openings on an external non-load bearing walls distance between the 2 farthest points within the area of opening ≤ 150mm; for 2 or more openings, the distance between each of the openings ≥ 150mm; and at the completion, the no. of openings within a wall area of 1m² ≤ 3

Non-Load Bearing Block Walls

Non-Load Bearing Block Walls
Minor Works Item	Description
Class I Item 1.43	Erection of Non-load bearing block wall for both domestic flat or non-domestic flat aggregate length of additional wall per m² of the floor area of the flat > 0.1m for domestic flat or > 0.2m for non-domestic flat, not fall within the MW items 3.39 or 3.40
Class III Item 3.39	Erection of Non-load bearing block wall for domestic flat aggregate length of additional wall per m² of the floor area of the flat > 0.1m but ≤ 0.3m
Class III Item 3.40	Erection of Non-load bearing block wall for non-domestic flat aggregate length of additional wall per m² of the floor area of the flat > 0.2m but ≤ 0.4m

Openings to Staircases or Lobbies

Openings to Staircases or Lobbies
Minor Works Item	Description
Class I Item 1.42	Formation/alteration of openings to staircases/lobbies opening to the enclosure of staircase that is used as a means of escape or a means of access for firefighting and rescue or its protected lobby

Openings in Slab for Smoke Outlets

Openings in Slab for Smoke Outlets
Minor Works Item	Description
Class I Item 1.2	Formation of openings in a slab area of opening > 1m² but ≤ 4.5m²
Class II Item 2.1	Formation of openings in a slab area of opening ≤ 1m² not fall within the DEW item 1

Fire Dampers in Ventilation System

Fire Dampers in Ventilation System
Minor Works Item	Description
Class II Item 2.42	Erection/alteration of fire dampers in ventilation system Any fire damper in a ventilation system

*For minor works to be carried out including but not limited to compliance with Fire Safety Directions/Fire Safety Improvement Directions issued under Fire Safety (Commercial Premises) Ordinance, Fire Safety (Buildings) Ordinance and Fire Safety (Industrial Buildings) Ordinance.

More details: See Fire Safety

For minor works carried out at common parts of a building, the person who arranged the works to be carried out or his appointed agent (including the PBP/PRC) should seek consent from all owners and the management company of the building and observe all duties as stipulated in the deed of mutual covenant.