| 摘要 |
A device for forming a lead-through sealed with respect to an outer impermeable wall layer (8) from the inner side of a wall having an insulating layer (7) arranged internally of said impermeable layer and through the wall so as to provide means (11, 20, 21, 29-31) for a tight external connection of air conducting members to the room inside the wall there, comprises a tube (12, 23) designed to be arranged to extend through an opening (9) in the insulating layer (7) and said outer wall layer (8). The tube extending from the inner side of the wall is arranged to project freely outside the wall and provide said means for external connection. The device has also means (14-16, 27) for creating a surrounding sealing of the tube with respect to the outer impermeable wall layer. |
