Most contractors charge between $616 and $1,856. They can cost as much as you spent per square foot for your metal roof (about $7–$12 per square foot). Contractors will evaluate the surface of the metal roof. They will look for protrusions and leaks in the material's troughs and ridges. They will measure the temperature of the roof at various locations during a rainstorm to make sure there are no hot spots that would indicate a leak. The majority of metal roofs are made out of aluminum. Because of this, they are very light-weight and can be taken off your house without too much effort. This means less money out of your pocket! However, this also means they are more likely to cause damage to sidewalks and driveway surfaces when they are removed. These surfaces should be checked by a contractor before they are put back over the metal roof. A few types of metal roofs are made out of copper or steel. They will usually have an extra layer of protection against corrosion added to them. These roofs may also be called "corrugated" or "sheetmetal" roofs. Metal roofs are very durable and can last for many years if cared for properly. However, like any other type of roof, they can leak if not maintained properly. It is important to have your metal roof inspected by a professional roofing company at least once per year.