One of the biggest concerns people have about metal roofs is how well they cope with rain. The two main worries are noise and rust.
Dealing with noise first, you might instinctively feel that heavy rain would make a real racket when falling on a metal roof.
This is an understandable worry and may have been the case with some roofs in the past, but it’s not a problem with modern metal roofing. As long as it’s insulated properly, you won’t notice any extra noise from a metal roof. Metal also reflects a lot of the sound away from the building rather so it won’t actually sound loud inside.
Remember, too, that the roof of a house is made from thicker and sturdier metal than the lightweight materials often used in outdoor structures like sheds and shelters.
In terms of rust, metal roofs are protected against corrosion by a tough coating. Choose a Colorbond steel roof, for example, and your roof is guaranteed to last, even in more challenging areas like the coast.