Have you ever spent time in a shed when it is raining very hard outside? The noise might be deafening, making you think that you would hate to have a metal roof on your home. But this is not going to be the case. Metal roofing is not much louder than any other roofing material in a home as long as it has solid sheathing.
With metal roofs, your main concerns would be dents and rust, but as long as you take good care of your roof, ensuring the gutters and downspouts work well as well as cutting back any branches that extend over the roof, you minimize the risk of anything serious like that happening.
Some roofing materials even come with a warranty against damage for a length of time, which could eliminate that worry. Metal roofing is fairly easy to install, especially since it can come in bigger sheets than many other materials.