Sealing tape roll

A sealing tape roll of a sealing tape of flexible, compressible foam with at least one interior barrier layer;

• wherein the sealing tape comprises a top surface, a bottom surface, two side surfaces connecting the top surface and the bottom surface to each other, a longitudinal direction, which is parallel to the bottom surface and to the side surfaces, and a thickness direction, which is perpendicular to the bottom surface of the sealing tape;
• wherein the sealing tape is wound up into the sealing tape roll around an axis transverse to the longitudinal direction of the sealing tape in such a way that the top surface of one turn rests against the bottom surface of an adjacent turn of the sealing tape roll, and the side surfaces of the sealing tape form end surfaces of the sealing tape roll, wherein a width of the sealing tape roll is defined as a distance between one end surface and the opposite end surface of the sealing tape roll;
• wherein the sealing tape comprises a plurality of foam plies, which are arranged one above the other in the thickness direction between the bottom surface and the top surface of the sealing tape, wherein a barrier layer is accommodated between each pair of adjacent foam plies;
• wherein the at least one barrier layer extends over at least 50% of the width of the sealing tape roll between the opposite end surfaces of the sealing tape roll and in the longitudinal direction of the sealing tape;
• wherein the at least one barrier layer is formed out of a film strip of polyamide, polyurethane, polypropylene, or copolymers thereof, or formed out of an adhesive strip;
• and
• wherein the at least one barrier layer comprises a sD value, which is characteristic of a water vapor diffusion resistance of the at least one barrier layer, in the range of 0.05-100 meters.