Disclosed is a tire building drum with a turn-up device and a turn-up method, wherein the tire building drum is rotatable about a central axis and includes a first drum half, a second drum half and a center section that is located in the axial direction between the first drum half and the second drum half, wherein the turn-up device includes a first turn-up bladder extending in a circumferential direction around the first drum half, wherein the turn-up device further includes a plurality of first pressing arms pivotable with respect to the first drum half between a rest position and a pressing position, wherein the plurality of first pressing arms in the rest position is arranged to lie at least partially between the uninflated first turn-up bladder and the first drum half in the radial direction.