“GI Colour Bond” usually refers to galvanized iron (GI) steel sheets with a colour-coated finish, commonly used for roofing, awnings, wall cladding, gates, and industrial buildings in Malaysia.
The most recognised brand is NS BlueScope COLORBOND® steel, which uses coated steel designed for tropical weather and corrosion resistance. (NS BlueScope)
Common uses:
Signage & Contruction signboard , road sign
Metal roofing
Factory and warehouse roofs
Porch/awning roofing
Fencing and wall cladding
Industrial structures
Typical features:
Anti-rust coating
Heat-reflective options
Multiple colours and finishes
Longer lifespan than standard GI sheets
Lower maintenance compared with plain zinc roofing (NS BlueScope)
Popular roofing profiles in Malaysia include:
Spandek
Trimdek
Corrugated
Kliplok / concealed-fix roofing
PU foam insulated panels
Common thickness:
0.30 mm
0.35 mm
0.42 mm
0.47 / 0.48 mm
0.53 mm
For residential roofing, many contractors recommend at least 0.42 mm–0.48 mm for better durability and less noise during rain.