| 摘要 |
A roof underlay seal (1) for a leadthrough penetrating a roof structure, includes a tubular collar (2) and a flange portion (3) laterally extending from the collar and surrounding it. The collar (2) is attached to a flange portion (3) via a flexible sleeve (4) extending between the collar (2) and the flange portion (3) for setting the upper end of the collar (2) flexibly at a desired distance from the flange portion (3). |
