How is metal for roofs produced?

Their are several ways metal roofing is produced, depending in the type of metal roofing.

The most popular type of metal roofing are panels. These panels are created beginning with a roll of painted or coated steel. This roll is ran through a series of steel rollers on a roll-former, which give it the ribs that provide the panels' strength.

There are also other types of metal roofing, such as those that look like shingles, slate, and tile. These are formed in several ways, the most popular being a form press, giving flat panels the shape of the various materials. These are sometimes coated with a stone chip process for a greater durability and attractiveness.