Abstract: Apparatus for producing panel roofing includes a platform mounted on an elevating mechanism. A panel producing machine is mounted on a support stand which in turn rides on tracks along a length dimension of the platform. A decoiler for decoiling metal sheet stock fed into the machine also rides on tracks along the platform length. The machine is oriented to produce panels in a direction perpendicular to the platform length dimension. With the platform elevated to roof edge and its length dimension parallel to that edge, the panel producing machine and decoiler are moved along the platform following extrusion of each successive roofing panel. In a preferred embodiment, the machine can be pitched to match a pitch of the roof to facilitate panel production.