Roof drain for building roof with mixed tiles has planar base with tapered end forming floor of gutter

摘要

The roof drain has a flat base surface (1) with a planar section (A) at one end and a curved section (B) at the other. The larger flat end is rectangular (3) and can have an end lip (4) which gives the plate slight elasticity. The edges of the planar section have side flanges (5) at a right angles. The base plate tapers towards the curved end to form a triangular section.