Abstract: An improved roofing material of the type which utilizes elongated planks nailed directly to the rafters. Each plank has a tongue along the upper edge and a groove along the lower edge. The improvement relates to the form of the gasket which has several beads along its length together with a thin layer or strip of wax approximately two inches wide is applied to the upper side of the tongue adjacent to where the gasket material will sit.

Abstract: A fabricated sheet metal roof flashing assembly for weather proofing the junction of roof planks at a roof valley. The invention consists of a series of abutting pairs of flashing assemblies faced over the intersection of two areas of roof planks. The flashing assembly has an elongated U-shaped channel member which encompasses upwardly directed integrally formed walls of the two flashing segments.