Ridge roof vent

摘要

A ridge roof vent adapted to be mounted on the ridge of a roof and comprising a top wall that is spaced from the remainder of the vent and is adapted to receive overlapping pieces of shingle roofing material comprising transversely extending primary indicia provided along the length of the ridge roof vent and including secondary transverse indicia associated with the transverse primary indicia in repetitive series. Each series of transverse primary indicia spans a distance less than the length of a shingle piece. The transverse primary indicia associated with the secondary indicia are positioned such that when a first shingle piece is applied from one end, the end of the shingle piece will be positioned between a pair of equally spaced secondary indicia and can be used to provide an overlap of the ends of the shingle pieces without the need for measurement. The ridge roof vent further includes a longitudinally extending line defining the center of the ridge vent and the transverse primary indicia intersects the line. The ridge roof vent further includes longitudinally extending indicia corresponding to dimensional increments such that they serve as a guide for cutting the vent where the roof is such that a equal number of ridge vents cannot be used and a ridge vent needs to be cut.