| 摘要 |
<p>At least one replaceable water-permeable part (11) made from copper covers the central region of the main part (2) of the device. The water-permeable copper part comprises at least one copper nonwoven (12), wool, fabric or fibre layer and at least one perforated sheet metal or mesh layer (13) made from copper and preferably located on the top side of this part. The main part of the device comprises a copper body which has a shape adapted to that of the roof ridge and two copper side plates (3) are secured to either side of this main part. Rainwater can enter through the central region of the main part and then flow through the intermediate spaces between the central region and side plates.</p> |
