An apparatus comprising: a roll-forming apparatus adapted to roll-form a sheet of material into a continuous beam having a longitudinal line level, the continuous beam having a first surface and an opposing second surface; a sweep station in-line with the line level and adapted to form a longitudinal shape into the continuous beam; wherein the apparatus further comprises the sweep station including a primary bending roller tangentially engaging the continuous beam along the line level and an armature (35, 63) for holding the continuous beam tightly against the primary bending roller for a distance partially around a downstream side of the primary bending roller to form a sweep and further including actuators for adjustably moving the armature at least partially around the downstream side of the primary bending roller between at least first and second positions for imparting at least first and second different longitudinal shapes, respectively, into the continuous beam, the sweep station including stationary side plates supporting a primary axle for the primary bending roller, characterised in that the sweep station further comprises a top axle carrying a first forming roller and a bottom axle carrying a second forming roller, the top axle and bottom axle being rotatably mounted to the stationary side plates upstream of the primary bending roller by top and bottom bearings for supporting the first and second forming rollers respectively, and the armature including an inverted U-shaped subframe supporting a retaining roller, the inverted U-shaped subframe including substantially vertical plates rotatably mounted to the primary axle by bearings with the retaining roller at one end, the actuators being operably connected to the inverted U-shaped subframe, wherein the U-shaped subframe is configured to rotate the retaining roller away from the second forming roller and thereby form a sweep a roll-forming apparatus adapted to roll-form a sheet of material into a continuous beam having a longitudinal line level, the continuous beam having a first surface and an opposing second surface; a sweep station in-line with the line level and adapted to form a longitudinal shape into the continuous beam; wherein the apparatus further comprises the sweep station including a primary bending roller tangentially engaging the continuous beam along the line level and an armature (35, 63) for holding the continuous beam tightly against the primary bending roller for a distance partially around a downstream side of the primary bending roller to form a sweep and further including actuators for adjustably moving the armature at least partially around the downstream side of the primary bending roller between at least first and second positions for imparting at least first and second different longitudinal shapes, respectively, into the continuous beam, the sweep station including stationary side plates supporting a primary axle for the primary bending roller, characterised in that the sweep station further comprises a top axle carrying a first forming roller and a bottom axle carrying a second forming roller, the top axle and bottom axle being rotatably mounted to the stationary side plates upstream of the primary bending roller by top and bottom bearings for supporting the first and second forming rollers respectively, and the armature including an inverted U-shaped subframe supporting a retaining roller, the inverted U-shaped subframe including substantially vertical plates rotatably mounted to the primary axle by bearings with the retaining roller at one end, the actuators being operably connected to the inverted U-shaped subframe, wherein the U-shaped subframe is configured to rotate the retaining roller away from the second forming roller and thereby form a sweep