| 摘要 |
<p>A roofing system comprises a number of panels linked together, each of which panels is provided with an insulating layer, a protective layer connected to the insulating layer and a first and second end, the first end of one panel being linked to the second end of a next panel. Near the first end a recess is provided between a first part of the protective layer and the insulating layer. Near the second end a second part of the protective layer extends to beyond the insulating layer. When the first and second ends of two panels are linked together, the first part of the protective layer between the second part of the protective layer and the insulating layer lies in the recess.</p> |
