• Design flexibility – expands the versatility of traditional corrugated roofing by increasing flexibility of design
  • Variety of shapes – can be formed into a wide variety of curved shapes and radii down to a nominal 500mm minimum
  • Easy fixing – conventional through-fixed screws maximise performance and ease of installation
  • 762mm cover – quick installation and easy handling
  • G300 curving quality base steel – also available as flat sheets to ensure matching profile on end laps
  • Fully tested – full range of load performance tables to suit most applications.


Curved Corrugated steel roofing can be pre-curved to produce a variety of interesting effects that enhance both modern and traditional building designs. Straight sheets can be combined with convex and concave curves to create highly original and aesthetically pleasing roof shapes.

The heritage bullnose veranda is the best-known application of curved corrugated sheeting but by no means the only one.  Curved Corrugated roofing is also a popular choice on contemporary steel-roofed homes and commercial buildings.

Curved Corrugated
cladding is only intended for use in commercial/industrial/residential roof or wall cladding applications. Do not use for any other purpose.


Curved Corrugated cladding is manufactured from G300 colour coated steel or zinc-aluminium alloy coated steel. In some locations galvanised and severe environment colour coated steel may be available by arrangement. Colour coated steels are in accordance with AS2728 – Category 3 and, for the substrate, with AS1397. Zinc-aluminium alloy coated AZ150 and galvanised Z450 conform to AS1397.


All building products need to be checked for compatibility with adjacent materials. These checks need to be for both direct contact between materials, and where water runs from one material to another. The following guidelines generally avoid material incompatibility:

  • For  zinc-aluminium alloy coated steel, colour coated steel and galvanised steel roofs avoid copper, lead, green or treated timber, stainless steel and mortar or concrete.
  • In addition galvanised steel roofs should not receive drainage from aluminium or any inert materials, such as plastics, glass, glazed tiles, colour coated and zinc-aluminium alloy.

Typical Curved Profiles