Contractors can only undertake the relevant classes or items of minor works for which they have been registered.
Supporting frames for air-conditioning unit, light fitting, antenna or transceiver projecting from wall
Erection/Alteration/Removal
Class I
1.28
Erection/Alteration/Removal
- Projecting from the external wall
≤ 750mm - Design weight capacity of the supporting frame
Any
Class II
2.49
Erection/Alteration
- Projecting from the external wall
≤ 600mm - Design weight capacity of the supporting frame
≤ 150kg - Distance between frame from roof or ground
> 3m
Class III
3.27
Erection/Alteration/Removal
- Projecting from the external wall
≤ 600mm - Design weight capacity of the supporting frame
≤ 100kg - Distance between frame from roof or ground
> 3m
Removal
Class II
2.31
Removal
- Projecting from the external wall/fence wall
> 750mm
Class III
3.26
Removal
- Projecting from the external wall/fence wall
≤ 750mm
Supporting frames for air-conditioning unit or any associated ducts projecting from wall
Strengthening of unauthorised supporting frame
Class III
3.35
Strengthening of Unauthorised supporting frame
- Projecting from the external wall
≤ 600mm - Design weight capacity for an A/C unit
≤ 100kg - If distance from ground
≤ 3m, no part of supporting frame projects over any street/common part of the building