Valley gutter covering and roof with such valley gutter

摘要

A valley gutter covering for a tiled roof comprising a plastically deformable plastic strip fastened to the roof structure and arranged so that tiles of the roof overlie edge portions of the strip. The strip is a flexible band having a smooth underside, bulbous edge portions (15) of its upper side which engage the tiles to form a seal, and a number of spaced longitudinally extending ribs (12, 13, 14) in its central zone. The ribs include a relatively thick central rib (13) and a number of thinner ribs (12) on either side of the centre. The ribs provide a relatively rigid central zone of the strip while the unribbed zones between this central zone and the bulbous edge portions have sufficient flexibility to take up deformations caused by expansion and contraction of the roof structure.