A roofing system having at least one underlayment layer; at least two nail fasteners attached to the at least one underlayment layer and into the roof deck, wherein the head of each of the nail fasteners is above the at underlayment layer and the shaft is driven through the underlayment layer and into the roof deck; at least one bead of adhesive applied above the underlayment layer; and at least one metal roofing panels placed on the at least one bead of adhesive applied above the underlayment layer, wherein the at least one metal roofing panels are above the at least two nail fasteners and the at least two nail fasteners do not penetrate the at least one metal roofing panels.

A configuration for a roofing tile base compatible with both photovoltaic (PV) and non-PV roofing tiles is described herein. The roofing tile base includes a first set of retaining features for being secured to a non-PV roofing tile and a second set of retaining features for being secured to a PV roofing tile. In particular, the roofing tile base includes a number of apertures sized to receive tile hooks positioned on a roof-facing surface of a PV roofing tile. Engagement by a respective hook of a portion of the roofing tile base defining the aperture helps to secure the PV roofing tile to the roofing tile base. The roofing tile base also includes retaining features on opposing lateral sides of the roofing tile base that are configured to lock into notches arranged on opposing sidewalls of a non-PV roofing tile.

A roof tile comprising a ceramic body and a reinforcing element attached to a lower surface of the ceramic body.

The present invention relates to a metal roofing material 1 that is arranged on an eave-side metal roofing material in an eave-ridge direction 6 of a roof so as to overlap the metal roofing material and the eave-side metal roofing material. The metal roofing material includes a front substrate 2 made of a metal sheet and including a body portion 20 formed in a box shape; a back substrate 3 arranged on the back side of the front substrate 2 so as to cover an opening of the body portion 20; a core material 4 filled between the body portion 20 and the back substrate 3; and at least one plate reinforcing member 5 that is embedded in the core material 4 at a position closer to the back substrate 3 than a top plate of the body portion 20 or that is disposed in contact with the outer surface of the back substrate 3.

The present invention relates to a metal roofing material 1 that is arranged on an eave-side metal roofing material in an eave-ridge direction 6 of a roof so as to overlap the metal roofing material and the eave-side metal roofing material. The metal roofing material includes a front substrate 2 made of a metal sheet and including a body portion 20 formed in a box shape; a back substrate 3 arranged on the back side of the front substrate 2 so as to cover an opening of the body portion 20; a core material 4 filled between the body portion 20 and the back substrate 3; and at least one plate reinforcing member 5 that is embedded in the core material 4 at a position closer to the back substrate 3 than a top plate of the body portion 20 or that is disposed in contact with the outer surface of the back substrate 3.

The present invention provides a method for testing strength of a metal roofing material, the metal roofing material comprising: a front substrate made of a metal sheet; a back substrate arranged on the back side of the front substrate; and a core material filled between the front substrate and the back substrate, the method comprising the steps of: tightening the metal roofing material 1 to a base 50; and applying a load 52L for uplifting an end portion 1E of the metal roofing material 1 tightened to the base 50 to the end portion 1E and measuring an uplift amount of the end portion 1E corresponding to the load 52L.

A snow-melting roof tile according to an embodiment of the present invention comprises: a metal roof tile including a main cover part, a first bending part bent vertically and located at a first edge in a first direction of the main cover part and, and a second bending part bent vertically and located at a second edge in the first direction, opposite to the first edge of the main cover part; a heat generation part located an upper portion or lower portion of the metal roof tile; and a fixing part for fixing the heat generation part to the metal roof tile, wherein the heat generation part can generate heat to heat the metal roof tile, thereby melting snow on the metal roof tile.

A device and method for covering a roof. The interlocking roof shingle includes a shingle having a top surface and a bottom surface. A first edge of the shingle is curved over the top surface and a second edge of the shingle is curved under the bottom edge of the shingle. The first edge of the shingle is configured to engage with the second edge of an adjacent shingle. The device further includes a tab configured to receive a nail and engage with the first edge of the shingle. Some embodiments of the shingle are configured to fit along the ridges and valleys of a roof. In these embodiments, the shingle has a center fold and a gap in the upper and lower folded edges.

A device and method for covering a roof. The interlocking roof shingle includes a shingle having a top surface and a bottom surface. A first edge of the shingle is curved over the top surface and a second edge of the shingle is curved under the bottom edge of the shingle. The first edge of the shingle is configured to engage with the second edge of an adjacent shingle. The device further includes a tab configured to receive a nail and engage with the first edge of the shingle. Some embodiments of the shingle are configured to fit along the ridges and valleys of a roof. In these embodiments, the shingle has a center fold and a gap in the upper and lower folded edges.

Novel rigid tile, rigid tile apparatus, methods of making and use are disclosed. One embodiment includes a method of mounting rigid tile with a nail gun providing a protruding nail tip used as a nail passage or depression finder in the rigid tile. Another embodiment includes a metal rooftile having at least one fastener passage having pre-formed spacer section extending from the upper surface of the metal rooftile to space a fastener head or end from the upper surface of the metal rooftile. Yet another embodiment provides a unitary ganged set of rigid rooftiles. A tile bottom-side covering sealing bent T-trim can be utilized to cover open underside areas of a right rooftile. A novel installation method and rigid rooftile installation kit can utilize embodiments of the structures and methods stated above and, as desired, yet additional structure such as differently structured rigid rooftile components and trim components of differing shapes and sizes as desired.