The invention relates to a photovoltaic roof tile (20) for obtaining electrical energy from solar radiation. The shape of the photovoltaic roof tile according to the invention corresponds substantially to the shape of a conventional roof tile, comprising a top-side photovoltaic module (26) with a first current line (34) and a second current line (36), said photovoltaic module (26) with being arranged on a base tile (22) which is used to fasten the photovoltaic roof tile (20) on the roof, wherein: the first current line (34) has a first connection element (38) at its free end, the second current line (36) has a second connection element (40) at its free end, at least one of the two lines (34, 36) is designed to be length-adjustable, the two connection elements (38, 40) are connectable to one another, the two connection elements (38, 40) are arranged in a basic state within the external dimensions of the photovoltaic roof tile (20),
and wherein, in an assembly state, at least one of the two connection elements (38, 40) can be drawn out beyond the external dimensions of the photovoltaic roof tile (20) and can be connected in a current-conducting manner with a corresponding connection element (38, 40) of an adjacent photovoltaic roof tile (20).

The invention relates to a photovoltaic roof tile (20) for obtaining electrical energy from solar radiation. The shape of the photovoltaic roof tile according to the invention corresponds substantially to the shape of a conventional roof tile, comprising a top-side photovoltaic module (26) with a first current line (34) and a second current line (36), said photovoltaic module (26) with being arranged on a base tile (22) which is used to fasten the photovoltaic roof tile (20) on the roof, wherein: the first current line (34) has a first connection element (38) at its free end, the second current line (36) has a second connection element (40) at its free end, at least one of the two lines (34, 36) is designed to be length-adjustable, the two connection elements (38, 40) are connectable to one another, the two connection elements (38, 40) are arranged in a basic state within the external dimensions of the photovoltaic roof tile (20),
and wherein, in an assembly state, at least one of the two connection elements (38, 40) can be drawn out beyond the external dimensions of the photovoltaic roof tile (20) and can be connected in a current-conducting manner with a corresponding connection element (38, 40) of an adjacent photovoltaic roof tile (20).

The disclosure provides systems to passively capture water from air, and related methods. The systems can be used as a roof tile.

The disclosure provides systems to passively capture water from air, and related methods. The systems can be used as a roof tile.

A corrugated roof sheet has a bottom, a first-side roof sheet edge portion, a second-side roof sheet edge portion, a retaining cap and a protruding portion. The first-side roof sheet edge portion has a height H1 from the bottom. The retaining cap covers the first-side roof sheet edge portion and has a lower fringe. The lower fringe has a height h2 from the bottom. The protruding portion is between the first-side roof sheet edge portion and the second-side roof sheet edge portion and has a height h3 from the bottom. The height h2 is greater than the height h3.

A lightweight interlocking metal roof system for installation onto a steep or inclined structure roof either directly over the roof decking material or over an existing shingle roofing system, with the metal roofing system installed from the roof ridgeline down to the drip edge of the roof gutter. Cooperating outwardly extending flanges and receiving pockets for capturing and interlocking the metal panels of the roofing system create an interlock between and among panel members with overlying edge ends configured to be resistant to lift up due to winds either across the roof or along the roof edges.

This invention, in embodiments, relates to a roofing material having a top edge, a bottom edge that is opposite to the top edge, a first side edge, and a second side edge that is opposite to the first side edge. The roofing material further includes (i) at least one water channel that extends along the first side edge, from the top edge to the bottom edge of the roofing material, and (ii) at least one attachment tab that is disposed on the first side edge. This invention further relates to a roofing system that includes such a roofing material and a method of installing thereof.

This invention, in embodiments, relates to a roofing material having a top edge, a bottom edge that is opposite to the top edge, a first side edge, and a second side edge that is opposite to the first side edge. The roofing material further includes (i) at least one water channel that extends along the first side edge, from the top edge to the bottom edge of the roofing material, and (ii) at least one attachment tab that is disposed on the first side edge. This invention further relates to a roofing system that includes such a roofing material and a method of installing thereof.

This invention, in embodiments, relates to a roofing material having a top edge, a bottom edge that is opposite to the top edge, a first side edge, and a second side edge that is opposite to the first side edge. The roofing material further includes (i) at least one water channel that extends along the first side edge, from the top edge to the bottom edge of the roofing material, and (ii) at least one attachment tab that is disposed on the first side edge. This invention further relates to a roofing system that includes such a roofing material and a method of installing thereof.

This invention, in embodiments, relates to a roofing material having a top edge, a bottom edge that is opposite to the top edge, a first side edge, and a second side edge that is opposite to the first side edge. The roofing material further includes (i) at least one water channel that extends along the first side edge, from the top edge to the bottom edge of the roofing material, and (ii) at least one attachment tab that is disposed on the first side edge. This invention further relates to a roofing system that includes such a roofing material and a method of installing thereof.