FAQs

Plantation® is now discontinued as a standard colour. Suppliers are still able to order non-standard colour from us, although price surcharges and/or minimum order requirements may apply. Please see our Find a Supplier page to find your nearest ten suppliers anywhere in Australia. This colour is still available in our fencing range, however the colour name is specific to the fencing product range. Hedge® is the fencing colour that matches the discontinued COLORBOND® steel colour Plantation®. Please view information on Fencing range including the warranty.

Night Sky® is a standard colour. Please see our Find a Supplier page to find your nearest ten suppliers anywhere in Australia. This colour is still available in our fencing range, for post and rails only, however the colour name is specific to the fencing product range. Please view information on Fencing range including the warranty.

The thickness of sheeting is normally measured as its BMT (base metal thickness). For steel of the same grade and profile, a higher BMT generally means the sheet can span further between supports.

Care should be taken when referencing thickness because some manufacturers will quote Total Coated Thickness (TCT). This is the thickness of the total sheet and will be higher than its BMT (which measures only the thickness of the steel beneath any coatings). eg. 0.42mm BMT is the same as 0.47mm TCT.

Increased thickness will not increase the life of a product, and direct comparisons of BMT between profiles or steel grades cannot be made. The profile manufacturer should be able to provide you with spanning information for the profile and BMT you are using.

Soft (or lower strength) steels will generally be thicker than hard, high strength (or hi-tensile) steels, and are commonly used in applications where tight curving is required.

For information on how to keep your COLORBOND® steel looking great, view our page Maintain COLORBOND® steel and ZINCALUME® steel. If you think you may have fungus growing on the surface, view our page Identify and Remove Fungus.

This is usually a result of the use of touch up paint on the sheeting. The manufacturing process which gives COLORBOND® steel its colour and gloss retention properties means its surface weathers differently to air-drying paint. After weathering, areas that have been touched up will look different and may result in a blotchy appearance.

Standard COLORBOND® steel is the product you're most likely to see on the majority of applications and locations across Australia. However, there are some environments and applications for which it isn't suited, and for these BlueScope Steel has developed specialised products. COLORBOND® Ultra steel is made for more severe environments, such as those exposed to industrial emissions or close to the sea. COLORBOND® Metallic steel has a unique metallic paint finish and is commonly used for prestige projects. You can find out more by viewing our pages: Specifying for marine and industrial environments and COLORBOND® Metallic finish.

COLORBOND® steel combines the corrosion resistance of a ZINCALUME® steel base with a durable, oven baked paint finish. Find out more on How It Is Made.

Green Star™ is a voluntary rating system developed to evaluate the environmental design, efficiency and performance of Australian buildings. The system is not used to evaluate individual building materials or products. For more view our page on Sustainability.

A whole range of products are manufactured by a number of rollformers using our COLORBOND®, ZINCALUME®, GALVASPAN® and DECKFORM® steels. You can find technical details and CAD files for the major rollformers from SteelSelect.com. SteelSelect.com provides technical information on a wide range of steel building products from major manufacturers such as Stramit, Metroll, Steeline, Fielders and BlueScope Lysaght. Products include roofing, walling, purlins, girts and structural decking made from COLORBOND®, ZINCALUME®, GALVASPAN® and DECKFORM® steels.

All the major paint manufacturing companies have colour matching codes to produce paint that will match to the COLORBOND® steel colours. Simply quote the trademarked COLORBOND® steel colour name and they should be able to provide you with paint to match, allowing you to paint trims and accessories to fit in with your COLORBOND® steel products. For further detail on overpainting (including touch-ups), Download Technical Bulletin TB 02 - Overpainting and Restoration of COLORBOND® prepainted steel sheet. Please be aware that when matching paint using new colour codes to older weathered material, there could be a difference in the colour due to fading of the existing product.