Roll casting method, - wherein in a mould region, which is delimited on a first side by a first casting roll rotating around a horizontal first axis of rotation, molten metal is cast and a metal strand created by solidification of the molten metal is conveyed out of the mould region, - wherein a liquid coolant is applied to the surface of the first casting roll via a first cooling device by means of a number of first coolant applying devices, - wherein the coolant is fed to the first coolant applying devices via first coolant lines, - wherein the coolant is inert in respect of the molten metal, has a standard boiling point in relation to normal air pressure of below 20°C - especially of below -20°C - and has an operating temperature which lies at an operating boiling point or therebelow, wherein the operating boiling point is related to an operating pressure (p) which is applied to the coolant, - wherein an actual property of the first casting roll or an actual property of the metal strand is detected by means of at least one sensor, - wherein the actual property is fed to a control device of the first cooling device, - wherein the control device, as a function of the actual property fed to it and a corresponding target property, independently determines an activation state of the first cooling device and activates the first cooling device accordingly, wherein the first coolant applying devices are disposed distributed, viewed over the width of the first casting roll and wherein for setting a defined casting profile the first coolant applying devices are activated individually or in groups. - wherein in a mould region, which is delimited on a first side by a first casting roll rotating around a horizontal first axis of rotation, molten metal is cast and a metal strand created by solidification of the molten metal is conveyed out of the mould region, - wherein a liquid coolant is applied to the surface of the first casting roll via a first cooling device by means of a number of first coolant applying devices, - wherein the coolant is fed to the first coolant applying devices via first coolant lines, - wherein the coolant is inert in respect of the molten metal, has a standard boiling point in relation to normal air pressure of below 20°C - especially of below -20°C - and has an operating temperature which lies at an operating boiling point or therebelow, wherein the operating boiling point is related to an operating pressure (p) which is applied to the coolant, - wherein an actual property of the first casting roll or an actual property of the metal strand is detected by means of at least one sensor, - wherein the actual property is fed to a control device of the first cooling device, - wherein the control device, as a function of the actual property fed to it and a corresponding target property, independently determines an activation state of the first cooling device and activates the first cooling device accordingly, wherein the first coolant applying devices are disposed distributed, viewed over the width of the first casting roll and wherein for setting a defined casting profile the first coolant applying devices are activated individually or in groups.