Manufacture of a folding top for a convertible

A method for connecting windowpane to a folding roof, comprising the steps of:

• providing the folding roof with a frame region peripherally surrounding an opening for the windowpane;
• aligning the windowpane on the frame region such that a first peripheral window edge region of a first side of the windowpane faces and overlaps the frame portion and fixing the windowpane in position;
• aligning a covering strip, for surrounding and covering the windowpane, on the windowpane and the folding roof such that an inner peripheral region of the covering strip faces and overlaps a second peripheral window edge region of a second side of the windowpane, and an outer peripheral region of the covering strip faces and overlaps an outer frame region of the folding roof which surrounds the frame region and the windowpane;
• in a first heat applying step, applying heat via a first electrode to the inner peripheral region of the covering strip, the first and second peripheral window edge regions, and the frame region to effect bonding therebetween;
• and
• in a second heat applying step following the first heat applying step, applying heat via a second electrode, movable relative the first electrode in alternative succession, to the outer peripheral region of the covering strip, and the outer frame region to effect bonding therebetween.