Durability and longevity, probably the most outstanding advantage of metal roofs is that they are made out of mainly galvanized steel, which is known to stay intact for decades and not rust. 

The value of metal roofs also will save you money on energy bills thanks to their heat-reflecting surface. As a bonus, metal roofing is steel dipped in a galvanizing compound that is intended solely to prevent rust.

Your roof should protect your home and family against the elements, not just cover you from them. The rainy season has nothing on a metal roof! A modern metal roof will not be louder than any other roof, nor will any amount of rain cause it to rust. Metal is naturally water-resistant, making leaks less common and keeping your home dry.