| 摘要 |
<p>A gutter for use in industrial buildings is formed from commercial quality steel sheeting or aluminium sheeting so as to provide a wall (2) of trough form with a base (5) and side walls (6,7), and means such as additional flanges (8) are provided to facilitate securing of the gutter at a building roof. At least portions of the wall (2) are structurally embossed (11/12/13) to increase the strength of the gutter, and it is preferable that the gutter has sufficient strength to serve additionally as a walkway. A gutter assembly can be formed from a plurality of gutter sections arranged as above.</p> |
