| 摘要 |
Abstract A screen applied to overlay a guttering (14) on an outside edge of a roof (10) of a building. The screen is a panel (15) of generally planar mesh moulded from a plurality of plastics 5 materials. It is affixed along one edge (16) to the roof (10) and along the opposite edge (17) to the top outside edge of the guttering (14). At least part of the plastics material on the bottom face (40) of the mesh has a higher content of carbon black, or a higher resistance to degradation by UV light, than does the plastics material forming the top face (38) of the mesh. The degradation resistant parts of the mesh may comprise stripes (49) of 10 plastics material containing carbon black. The black stripes (49) are not visible from above when the mesh is installed. Fig. 1 12 Fig. 2 |
