Abstract: The present invention is directed to a metal roofing shingle system comprising universal flashing installed as either a ridge cap, hip flashing, or valley flashing and including non-visible double-flanged interlock joints that extend beneath the underside surface of the flashing, the interlock joints are adapted to couple with metal shingles; each metal shingle having a planar segment, a first longitudinal edge segment opposite a second longitudinal edge segment that includes a non-visible double-flanged interlock joint that extends beneath the bottom surface of the shingle, and a first transverse edge segment opposite a second transverse edge segment that includes a non-visible double-flanged compression joint that extends beneath the bottom surface of the shingle; and shingle shaping tools.

Abstract: A multiple-panel roof system has panel edges in a shape of like plows which are interengaged with corresponding channels formed in opposing panel edges. A layer of resiliently compressible foam extends from the outer panel surface adjacent to the plow, down the sloped surface of the panel, and covers the tip of the plow. A sealant bead is placed within the channel on its lower wall. When the opposing edges of adjacent panels are fully interengaged, the portion of compressible foam at the tip of the plow and the portion of the foam on the outer panel surface are each compressed by corresponding locations on the channel to form a pair of watertight seals. In addition, the sealant bead is displaced by the plow as the plow enters the channel, until the sealant bead fills the region between the plow and the channel, thereby forming a third seal.

Abstract: A roof panel construction system adapted structurally for use on a new roof, or over a pre-existing roof, dead level flat or steep, said system comprising a series of panels each having first and second metallic cover sheets, a structural and thermally protective barrier layer encased by said cower sheets and a nose and pocket construction on two adjacent edges formed so that the nose of a first panel will conformably fit into the pocket of a second panel and be mated thereto, said nose and pocket structures further comprising a plurality of sealing strips so that the joints between said panels are automatically sealed and spaced and become resistant to thermal and fluid leakage, said sealing strips being enclosed within the joint to assure maximum effective life of the system.

Abstract: A roof construction for use upon a deck or pre-existing roof which includes a series of elongated coplanar roof panels assembled edge-to-edge at their ends in a line and top-to-bottom at right angles thereto juxtaposed over said roof or deck. Each roof panel comprises a thin metallic skin having a rectangular top plate with a downturned front edge along its length. Below the front edge is an assembly slot bounded by an outturned anchor plate adapted for securing to said roof. A series of snap lock stops are formed in said panel and extend into said assembly slot. The top plate has a downturned rear edge which terminates in a flexible outturned assembly plate spaced from and projecting rearwardly of the top plate. The assembly plate terminates in a reverse-turned snap lock flange which extends above said assembly plate.