The present invention relates to an insulating element (1) comprising at least one roll (2) or at least one panel of insulating material (3) such as a glass wool or rocking surface, said insulating element (1) comprising at least one label 5), said at least one label (5) comprising an outer film (50) having, on the one hand, an upper printed surface, and on the other hand a layer of adhesive material located below said outer film Wherein the label (5) is applied to the surface (10) of the insulating element (1) and is adhered to the surface by the layer of adhesive material, the label (5) (5) having at least two longitudinal incisions (54, 54) through which the outer film (50) and the layer of adhesive material pass both over their respective thicknesses 'And, on the other hand, at least partly between the two longitudinal incisions 54 and 54' , And on the other hand relates to insulating element (1), characterized in that it comprises the support film portions (52) which is located below the adhesive material layer.
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