| 摘要 |
<p>A crack-resistant substrate is used, e.g. a building component of concrete, wood or steel lined with heat-insulating panels. The intermediate layer is two separate sheets which are loosely stitched together to allow them to slide loosely relative to each other, and which each have a slip inner surface. The outer surface of one sheet is bonded to the sealing film, and that of the other is bonded to the substrate. The slip surfaces may consist of a heat-fusible film, pref. polyester from which are produced several seam-forming connecting points between the slip surfaces by thermoadhesion. The sealing film is prevented from cracking due to stress on the substrate.</p> |
