The insulation tile comprises a first planar surface, a second planar surface and side surfaces defining the surfaces, and a casting compound layer as well as an insulation material layer, which is manufactured from thermal insulation material, the compression strength of which is at least 10 kPa. The casting compound layer forms the first planar surface of the insulation tile and the insulation material layer forms the second planar surface of the insulation tile. Furthermore, the insulation material layer of the insulation tile comprises grooves in the area of the planar surface which will be against the casting compound layer. The insulation tile according to the invention can be used in floor, roof and wall structures.