Combined roof gutter, fascia seal and eaves - has horizontal and vertical surfaces offset from horizontal and vertical lines

摘要

All the horizontal and vertical surfaces of the gutter (10) run parallel away from each other. The surfaces are offset by an angle (alpha) from both the horizontal and the vertical. This angle being pref. between 5 and 10 degrees. Fixing fishplates or stem pieces (11a,11b) may be horizontally and vertically located on the channel bottom (11). The side (12) can have a supporting and fixing stem piece (12a).