Patent ID: 8900684

Claim:
Vapour barrier collar comprising a number of sheet elements including side sheet elements extending substantially along a longitudinal axis and top and bottom sheet elements, respectively, extending substantially along a lateral axis perpendicular to said longitudinal axis, each sheet element having two end edges adjacent to a first edge of said sheet element, said sheet elements being mutually joined together in joints extending along said end edges so that said end edges when joined form a vapour barrier collar having the shape of a frustrum of a pyramid, and mounting means are provided along said first edges of said sheet elements, characterized in that said first edge of each sheet element defines an entire length, said mounting means extend uninterruptedly along the entire length of said first edge of each sheet element, wherein said mounting means is formed by a strip element attached to each sheet element, and wherein the sheet elements is attached to the strip element at one of its faces by welding, gluing or heat sealing; and wherein said strip element comprises a first component and a second component, each of said components extending along a longitudinal axis of said strip, said second component being located primarily in zones proximal to two end faces of said strip, said end faces extending substantially parallel to the longitudinal axis of the strip, and said first component being primarily located in a zone extending between said zones of said second component.