![]() ![]() ![]() ![]() If left long enough, rust will eventually make its way through some metal roofs leaving holes that are large enough for rain to seep through into the roofing cavity, and even into the walls and the basic structure of the home. Metal roofs on homes that are in coastal or high-rainfall areas are particularly prone to rust. Over time and if exposed to harsh weather and environmental conditions, even treated roofs can wear down and corrosion can start to develop. Most metal roofs these days are treated with protectants (or galvanised), which is a process of applying a protective zinc coating to iron or steel, however even if they’re outfitted with high-quality steel products, metal roofs can still exhibit signs of damage as the years pass and the material endures normal wear and tear out in the open. The longer the metal is exposed to moisture, the faster corrosion and rust will spread. Roof rust and corrosion occur when metal roofing comes into contact with moisture in the air causing a chemical reaction. But how do you deal with rust on your roof? Why does rust develop and what damage can it do? And compared to other roofing materials, metal roofing can also be installed quickly, usher away rainwater swiftly, and they’re the perfect roofing systems for homes built on a slope. Unfortunately, metal roofs are also very susceptible to rust – it’s their biggest enemy! Metal roofs more than 15 years old will certainly show the negative effects of corrosion which can be extremely damaging to an entire home, and even modern-day roofing can show signs of wear and tear after a few years. These days, modern metal roofs are the roof-of-choice for many of this country’s property owners, because they’re flexible, lightweight, and generally cheaper to install and maintain than clay, asphalt, and cement tile roofs. We associate them with shearing sheds, water tanks, outdoor dunnies, and of course, the quintessentially iconic home, the Queenslander. Old-fashioned corrugated iron roofs are distinctly Australian and have been the stuff of folklore. ![]()
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