FIELD: manufacture of metal buildings with arced roof and vertical walls. SUBSTANCE: method involves forming panels of predetermined length from rolled sheet material; continuously flanging panels along their side edges to provide strengthening of panels and selectively bending by corrugating bottom part of panels. Flanging and curvature are automatically adjusted so as to form panels of building with vertical walls and arced roof. Movable flanging roll is automatically positioned to regulate curvature of panels and is provided with chain drive allowing positioning of roll without disturbing operation of chain drive. EFFECT: increased efficiency, wider operational capabilities and enhanced reliability in operation. 17 cl, 14 dwg
