![]() ![]() In the case of a Heritage building that was originally clad with short sheet, end-lapped galvanised steel (painted or unpainted) sheets, roofing made from ZINCALUME® steel or COLORBOND® steel would be a suitable replacement for the following reasons: The following answers the question posed earlier. COLORBOND® steel is protected by a total of eight layers of corrosion resistant alloys and oven-baked paints to easily weather anything the harsh Australian environment can deliver. ![]() Despite the improvement in technology over the years, its aesthetic appeal remains the same. It is the result of years of technical development to produce the most durable and versatile roofing material available to Australian builders and home owners. The next major advancement was the introduction of COLORBOND® steel prepainted steel. Long term testing has shown that, in most environments, ZINCALUME® steel lasts at least twice as long as an equivalent galvanised coating while in some commonly occurring cases, it will last up to four times as long. ![]() In 1976, ZINCALUME® steel zinc/aluminium coated steel commenced manufacture and rapidly gained market acceptance as a durable roofing material. The sheets produced were then available in a number of lengths that reduced the need to lap sheets in many cases. This continued until World War I when corrugated iron became very scarce.Ĭonsequently, John Lysaght decided to start operations in Australia in 1921. Many such roofs were painted by the owner or builder after installation. These were in the form of standard length sheets approximately 2.4 metres long that had to be lapped from the ridge line of a home down to eaves level. They were 'hot dipped' galvanised - a process which gave the sheeting an heavy, uneven zinc coating. 'Corrugated iron' as it was known, was produced in England in the late 1800's and exported to Australia under the "CUSTOM ORB®" brand name. 'Corrugated' is the common reference used to describe the shape (or profile) of material used in roofing and walling applications. To assist in answering that important question, a quick explanation of the history of steel roofing material in Australia will paint a clear picture of what was available then and what is available now. If these roofs need replacing, the question that many restorers ask is "what should I use to replace the 'corrugated iron'?". Many of these roofs are made from a product that was known as 'corrugated iron'. Today, during Heritage Building restoration projects, the roof is an area that receives great attention, due to the battering from the harsh Australian environment over many years. Whatever their condition, owners and restorers of these buildings have the opportunity to ensure these buildings remain true to the original intended architecture, while at the same time utilising products that will outlast and provide greater protection for the structure than those used originally. They are all in various states of repair, some painstakingly restored to their original condition, some in need of great amounts of tender loving care. Thankfully, many are still standing and in use, and many have been granted heritage classification to ensure they remain that way for future generations to enjoy. ![]() Many are buildings of significance, not only due to their age and appearance, but also because of the part they play in Australia's history. Australia has thousands of buildings that showcase architectural styles prominent in the early days of settlement. ![]()
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