Decoupling Sheet

The invention relates to a decoupling sheet (1) having a carrier plate (2) and a plurality of nubs (4) protruding from the carrier plate plane (3). According to the invention, a plurality of protrusions (21a) and/or recesses (21b) is provided on the side of the nub base (10) of at least one nub (4) facing toward the nub interior space (20) and/or a plurality of protrusions (21c) and/or recesses (21d) is provided on the side of the carrier plate (2) facing toward the nub interior space (20), especially wherein the protrusion (21a) and/or the recess (21b) on the nub base (10) and/or the protrusion (21c) and/or the recess (21d) on the carrier plate (2) has a height and/or a depth greater than 1 .mu.m, preferably greater than 100 .mu.m, further preferably between 100 and 1000 .mu.m and especially at least substantially between 300 and 500 .mu.m.