A lightweight roofing shingle comprising a saturated mat having an exposed side and an unexposed side wherein a fabric reinforcing layer substantially replaces the bottom asphalt coating and the backing aggregate on the unexposed side of a conventional shingle. The lightweight shingle will have a top asphalt layer applied to the exposed side of the mat and a layer of granular material applied to the top asphalt layer opposite the mat per conventional construction, and the fabric reinforcing layer is adhered directly to the unexposed side of the saturated mat. In one embodiment, the fabric reinforcing layer covers an entire area of the unexposed side of the saturated mat. The reinforcing layer may preferably be a nonwoven fabric made from PET or polypropylene. The lightweight roofing shingle may also include a release tape layer applied to the reinforcing layer opposite the saturated mat.

A shingle including a substrate having a first surface defining an upper side of the shingle and an opposing second surface defining a lower side of the shingle; asphalt infiltrating the substrate to form a first asphalt coating on the first surface of the substrate and a second asphalt coating on the second surface of the substrate; a plurality of granules embedded in the first asphalt coating; a first hydrophobic material; and a second hydrophobic material that is a different composition than the first hydrophobic material and the second hydrophobic material comprises a metal stearate, wherein the lower side of the shingle includes a lower surface and the first and the second hydrophobic material are disposed on the lower surface.

Roof tile for forming a roof covering, wherein the roof tile (1) comprises a ceramic body (8); wherein said ceramic body (8) is made of porcelain; and wherein the roof tile (1) further comprises a glaze coating (9), which is situated above said ceramic body (8).

An exemplary shingle includes at least one coated shingle sheet defining a headlap portion and a tab portion each having opposed upper and lower surfaces. A first line of adhesive is adhered to one of the upper surface of the headlap portion and the lower surface of the tab portion, and includes a first thermally activated adhesive material. A second line of adhesive is adhered to one of the upper surface of the headlap portion and the lower surface of the tab portion, and includes a second thermally activated adhesive material having a minimum activation temperature less than a minimum activation temperature of the first thermally activated adhesive material.

An exemplary shingle includes at least one coated shingle sheet defining a headlap portion and a tab portion each having opposed upper and lower surfaces. A first line of adhesive is adhered to one of the upper surface of the headlap portion and the lower surface of the tab portion, and includes a first thermally activated adhesive material. A second line of adhesive is adhered to one of the upper surface of the headlap portion and the lower surface of the tab portion, and includes a second thermally activated adhesive material having a minimum activation temperature less than a minimum activation temperature of the first thermally activated adhesive material.

A system includes a plurality of photovoltaic shingles installed on a roof deck, each of the shingles having a first layer including a head lap portion, and a second layer including at least one solar cell. A first photovoltaic shingle overlays at least a part of the head lap portion of a second photovoltaic shingle. The system includes at least one wireway installed proximate to a first end of at least the first photovoltaic shingle.

A system includes a plurality of photovoltaic shingles installed on a roof deck, each of the shingles having a first layer including a head lap portion, and a second layer including at least one solar cell. A first photovoltaic shingle overlays at least a part of the head lap portion of a second photovoltaic shingle. The system includes at least one wireway installed proximate to a first end of at least the first photovoltaic shingle.

Hip and ridge shingles may be single layer or laminated. One hip and ridge shingle has a base layer and a dimensional layer affixed to the base layer by an adhesive line that extends in the machine direction and along the width of the base and the dimensional layers. The adhesive line is disposed on only one lateral side of the base layer and dimensional layers to allow movement of another lateral side of the dimensional layer relative to the base layer. Another laminated hip and ridge shingle includes a base layer and a dimensional layer affixed to the base layer by an adhesive line that extends in the machine direction and along the width of the base and the dimensional layers. Sealant that comprises at least two parallel lines of sealant material that extend in the machine direction of the base and dimensional layers is disposed on a bottom surface of the base layer for adhering the hip and ridge shingle to an underlying hip and ridge shingle. Another hip and ridge shingle, which may be single layer or laminated, includes a granule coated asphalt substrate, sealant on the substrate, and release tape on the substrate. The sealant comprises at least two parallel lines of sealant material that extend in a direction of a width of the substrate for adhering the hip and ridge shingle to an underlying hip and ridge shingle. The release tape is disposed on a bottom of the substrate and is alignable with the at least two parallel lines of sealant when two of the hip and ridge shingles are stacked to prevent the two hip and ridge shingles from sticking together.

Hip and ridge shingles may be single layer or laminated. One hip and ridge shingle has a base layer and a dimensional layer affixed to the base layer by an adhesive line that extends in the machine direction and along the width of the base and the dimensional layers. The adhesive line is disposed on only one lateral side of the base layer and dimensional layers to allow movement of another lateral side of the dimensional layer relative to the base layer. Another laminated hip and ridge shingle includes a base layer and a dimensional layer affixed to the base layer by an adhesive line that extends in the machine direction and along the width of the base and the dimensional layers. Sealant that comprises at least two parallel lines of sealant material that extend in the machine direction of the base and dimensional layers is disposed on a bottom surface of the base layer for adhering the hip and ridge shingle to an underlying hip and ridge shingle. Another hip and ridge shingle, which may be single layer or laminated, includes a granule coated asphalt substrate, sealant on the substrate, and release tape on the substrate. The sealant comprises at least two parallel lines of sealant material that extend in a direction of a width of the substrate for adhering the hip and ridge shingle to an underlying hip and ridge shingle. The release tape is disposed on a bottom of the substrate and is alignable with the at least two parallel lines of sealant when two of the hip and ridge shingles are stacked to prevent the two hip and ridge shingles from sticking together.

An asphalt coated roofing shingle including a mat substrate saturated with asphalt, a top asphalt layer on a top surface of the mat, a bottom asphalt layer on a bottom surface of the mat, a granular layer on the top asphalt layer and a layer of melt-blown fibers applied to the bottom asphalt layer. A method for making a lightweight roofing shingle including the steps of saturating a mat substrate wherein the mat substrate has a top surface and a bottom surface; applying a top asphalt layer to the top surface; applying a bottom asphalt layer to the bottom surface; applying a layer of granular material to the top asphalt layer opposite the mat after the top asphalt layer is applied to the top surface; and applying a layer of melt-blown fibers directly to the bottom asphalt layer after the bottom asphalt layer is applied to the mat substrate.