| 摘要 |
<p>Hooks (9) are screwed to the wall at predetermined intervals, each having top and bottom wings extending respectively upwards and downwards to ensure engagement between two profiles. One profile (8) covers vertical weatherproofing edge against the wall and is clipped to the bottom part of the hook at its upper end to extend as far down as the roof at its lower end. A second profile (7) is clipred to the top of the hook at its upper end, extends down to cover the top of the first profile and has an extension at its top end to take mastic sealing material (14).</p> |
