A method of roofing a bare roof deck includes applying asphalt shingles and metal flashings to a wood deck of a roof. The flashings applied are edge drip for edges and gable ends, metal valleys, and step flashing for wall to roof junctions. Asphalt capping of ridges or hips are applied. Metal panels overtop of existing asphalt roof are applied thereby creating a metal overlay configured such that substantially all of the asphalt shingles are covered with a metal panel for preventing further degradation of asphalt components by shielding from sunlight, UV rays, excessive moisture, snow, wind, ice, and fire. No further flashings are installed thereby the metal panel overlay is configured to create a semi-watertight seal such that the metal panel overlay together with the asphalt roof is adapted to create a watertight seal.

A clip for electrically bonding a pair of adjacently-disposed metal panels is disclosed. One embodiment entails such a clip (104) including a first clip member (112) and an oppositely disposed second clip member (116). The surface (114) of the first clip member (112) that faces the second clip member (116) includes at least one grounding projection (128), while the surface (118) of the second clip member (116) that faces the first clip member (112) also includes at least one grounding projection (128). The clip (104) may be installed on a standing seam (102) of a panel assembly (100), with its first clip member (112) engaging one of the metal panels 82″ that define this stand seam (102) and with its second clip member (116) engaging the other of the metal panels 82″ that define this same standing seam (102).

A clip for electrically bonding a pair of adjacently-disposed metal panels is disclosed. One embodiment entails such a clip (104) including a first clip member (112) and an oppositely disposed second clip member (116). The surface (114) of the first clip member (112) that faces the second clip member (116) includes at least one grounding projection (128), while the surface (118) of the second clip member (116) that faces the first clip member (112) also includes at least one grounding projection (128). The clip (104) may be installed on a standing seam (102) of a panel assembly (100), with its first clip member (112) engaging one of the metal panels 82″ that define this stand seam (102) and with its second clip member (116) engaging the other of the metal panels 82″ that define this same standing seam (102).

An industrial roof panel includes a projection and a complementary wing at opposite sides. The projection has a recess configured for clamping the panel to a second neighboring panel using a fastener such that the panel is supported by the second neighboring panel for reduced buckling under downward load. A modular panel system includes first and second mutually juxtaposed panels, each supported by purlins of a building structure extending along a width of the panels. The second panel has an undercut extending along a length of the panel on a distal side thereof. The first panel has an integral wing-type female coupler extending along a length of the first panel and overlaying an upward projection of the second panel, to which it is secured using fasteners and bolts.

An industrial roof panel includes a projection and a complementary wing at opposite sides. The projection has a recess configured for clamping the panel to a second neighboring panel using a fastener such that the panel is supported by the second neighboring panel for reduced buckling under downward load. A modular panel system includes first and second mutually juxtaposed panels, each supported by purlins of a building structure extending along a width of the panels. The second panel has an undercut extending along a length of the panel on a distal side thereof. The first panel has an integral wing-type female coupler extending along a length of the first panel and overlaying an upward projection of the second panel, to which it is secured using fasteners and bolts.

An interlocking panel system for covering a base surface with interlocking panels to prevent water ingress is provided. A first panel includes a sheet-like section, a receptacle connected to the sheet-like section, a first projection and a second projection. An interlock includes an interlock hook portion and an interlock receiving portion with the interlock configured to be inserted into the receptacle of the first panel and at least one of the interlock hook portion or the receptacle preventing the interlock from being withdrawn from the first panel. A second panel includes a sheet-like portion and a second panel hook portion configured to be inserted into the interlock receiving portion and engage with the second projection of the first panel. At least one of the second panel hook portion or the second projection preventing the second panel from being withdrawn from the first panel and/or interlock.

An interlocking panel system for covering a base surface with interlocking panels to prevent water ingress is provided. A first panel includes a sheet-like section, a receptacle connected to the sheet-like section, a first projection and a second projection. An interlock includes an interlock hook portion and an interlock receiving portion with the interlock configured to be inserted into the receptacle of the first panel and at least one of the interlock hook portion or the receptacle preventing the interlock from being withdrawn from the first panel. A second panel includes a sheet-like portion and a second panel hook portion configured to be inserted into the interlock receiving portion and engage with the second projection of the first panel. At least one of the second panel hook portion or the second projection preventing the second panel from being withdrawn from the first panel and/or interlock.

An interlocking panel system for covering a base surface with interlocking panels to prevent water ingress is provided. A first panel includes a sheet-like section, a receptacle connected to the sheet-like section, a first projection and a second projection. An interlock includes an interlock hook portion and an interlock receiving portion with the interlock configured to be inserted into the receptacle of the first panel and at least one of the interlock hook portion or the receptacle preventing the interlock from being withdrawn from the first panel. A second panel includes a sheet-like portion and a second panel hook portion configured to be inserted into the interlock receiving portion and engage with the second projection of the first panel. At least one of the second panel hook portion or the second projection preventing the second panel from being withdrawn from the first panel and/or interlock.

An interlocking panel system for covering a base surface with interlocking panels to prevent water ingress is provided. A first panel includes a sheet-like section, a receptacle connected to the sheet-like section, a first projection and a second projection. An interlock includes an interlock hook portion and an interlock receiving portion with the interlock configured to be inserted into the receptacle of the first panel and at least one of the interlock hook portion or the receptacle preventing the interlock from being withdrawn from the first panel. A second panel includes a sheet-like portion and a second panel hook portion configured to be inserted into the interlock receiving portion and engage with the second projection of the first panel. At least one of the second panel hook portion or the second projection preventing the second panel from being withdrawn from the first panel and/or interlock.

A mounting device or clamp is provided that can be secured to a roof joint without damaging the roof joint. Two roof panels can be joined at a roof joint that extends away from the roof. The clamp has a body with a slot to receive the roof joint. An insert of the clamp is rotatable relative to the body from a first position to a second position. The clamp body can be positioned over the roof joint, and the insert can rotate or pivot from the first position to the second position relative to the body to secure the clamp to the roof joint. In one embodiment, a body of the clamp has a first arm that is concave and the insert has a concave portion to engage the roof joint. Alternatively, in another embodiment, the insert can be connected to the clamp body such that either a first projection or a second projection of the insert faces a roof joint.