Steel roofing can last as long as forty years or more and, in most cases, requires very little maintenance over the course of its lifespan. Asphalt roofing, on the other hand, will typically need to be replaced every 15-20 years or less depending on the quality of material. So even though the initial cost of metal is usually higher than asphalt, metal roofing can actually end up saving you time and money in the long run.
A quality steel roof properly installed can withstand just about anything that Mother Nature can throw at it. Unlike asphalt roofs which require regular maintenance to replace broken or deteriorating shingles as well as moss and algae removal, steel roofing requires minimal upkeep. Ensuring your steel roof is free from debris and a once-yearly inspection for minor maintenance items such as cleaning and paint touch up is typically all that is needed to keep your steel roof in tip-top shape.