A method for repairing damaged asphalt shingles includes inserting a tube under the damaged shingle such the terminal end of the tube lies in the vicinity of the damaged area of the shingle, pushing a liquid emulsion through the tube and under the damaged shingle in and around the damaged area, applying a sealant to the upper face of the damaged shingle to fill and seal the damaged area, applying color granules to the sealant to match the granules associated with the damaged shingle, and allowing the sealant and liquid emulsion to seal the damaged area. The method may also include forming a hole in the center of the damaged area of the shingle and applying a sealant through the tube into the hole in sufficient quantity to allow the sealant to spread underneath the damaged shingle and around the damaged area of the shingle, filling the hole with a liquid emulsion, and applying colored granules to the liquid emulsion.

A panel fastener and panel fastening system are provided. The panel fastener includes a body having a collar and an elongated shank extending from the collar. The elongated shank defines an interior space and having a penetrating tip disposed at an end opposite of the collar. The panel fastener also includes a substrate fastening portion configured to be driven into a substrate and a holding mechanism connected to the substrate fastening portion and configured to engage the substrate.

A multi-material joint includes first and second body members, a staple, a wire ladder, and an adhesive. The first body member includes a first layer of fiber reinforced material which has first upper and lower surfaces. The second body member includes a metal. The staple includes first and second prongs joined by a crown. The first and second prongs are inserted through the first layer such that the crown is positioned adjacent to the first upper surface. The wire ladder is positioned adjacent to the first lower surface and includes first and second rails coupled together by a plurality of rungs. The first and second prongs hook over the respective first and second rungs. The adhesive is positioned between the first and second body members, and covers at least a portion of the crown. Other multi-material joints are also provided, as are methods of making multi-material joints.

A shingle patch for repairing damaged asphalt shingles includes a base member, a notched portion on one end thereof, a roofing nail formed on its opposite end portion, or a flap portion which can be lifted so that a standard roofing nail can be nailed into the underlying damaged shingle, and colored granules embedded into the top surface of the base member. A sealant covers at least a portion of the notched portion and the bottom surface of the base member. The notched portion is structured for sliding under the shingle located immediately above the damaged shingle and the remainder of the shingle patch overlays the damaged shingle. An emulsion/adhesive injector system for repairing damaged shingles, an integral nail/disk structure which eliminates the need of having any exposed nails associated with a shingled roof, and special tools for lifting the bottom edge of a shingle are also disclosed.

A staple has a pair of legs extending approximately parallel to each other. Base ends of the pair of legs are connected to a crown. The crown has a width greater than a separation distance between the pair of legs. The crown has a planar top surface facing away from the pair of legs.