| 摘要 |
<p>The invention concerns a prefabricated roofing element in the form of a laminate consisting from its inner surface towards its outer surface exposed to poor weather conditions, of at least a first continuous layer constituting said element core based on a thermosetting binder and reinforcing materials, constituting said element core, of a second continuous protective coating layer, consisting of a mixture of at least a synthetic resin, a constituent staining in its volume said resin and a catalyst. Said roof cover element is characterised in that it further comprises at least a third discontinuous layer of paint unevenly distributed on the surface of the second layer and consisting of materials immiscible with the second layer constituents to form stains at the second layer surface.</p> |
