|Rollforming is most commonly used to form prepainted
sheet into roofing and siding panels. Rollformers consist of a series of
shaped rolls mounted on stands that progressively form the sheet fed
from a coil into panel profiles.
Prepainted sheet can be readily formed into an almost limitless variety of shapes and profiles, depending on the strength and ductility of the sheet, the characteristics of the paint system, and the type of rollforming equipment and its maintenance