Patent ID: 7311199

Claim:
A bundle of rolls formed of an insulation strip made of a fibrous product having an initial density, said bundle comprising several aforementioned rolls, each having an axis, a peripheral surface and first and second ends, and being arranged one next to the other with their axes parallel, in a number of superposed rows, a packaging film which covers at least said peripheral surface of each roll of the insulation strip which, when wound up on itself, has a density which is greater than said initial density, and a wrapping film which wraps each row of several rolls, in a compressed state of the rolls against one another in a first direction perpendicular to the axes of the rolls, and which covers at least part of the peripheral surface of the rolls of the row, characterized in that said bundle furthermore comprises a sleeve which encloses the wrapped and superposed rows of rolls, in a compressed state of the rows against one another in a second direction perpendicular to the axes of the rolls and perpendicular to said first direction, and which covers the first and second ends of the rolls of the bundle and at least part of the peripheral surface of the rolls of a top row and of a bottom row of said superposed rows of the bundle, the bundle thus formed having a final density which is at least equal to 90%, preferably 95%, of said density which is greater than the initial density.