A multi-part roofing underlayment having independent release liners, where the underlayment comprises separable portions attached adjacent top edges of the separable portions, creating an interface therebetween into which roofing components may be inserted, easing installation and better mitigating wind-driven rain and ice dam related roof failures. Embodiments provide the multi-part roofing underlayment in sheet and roll forms and with various configurations of release liners, adhesive layers, granular layers, selvedge edges, and plastic layers.

A shingle which includes a substrate, granules deposited on the substrate, a first material strip applied to the top of the substrate, a second material strip applied to the bottom of the substrate, and an adhesive applied to the second material strip. The second material strip is positioned along an edge of the substrate such that when a shingle is applied to a roof overlaying an existing shingle, the adhesive adheres the second material strip of the overlaying shingle to the first material strip of the existing shingle. The second material strip is applied to the bottom of the substrate prior particles being applied to the bottom surface of the substrate.

Various embodiments disclosed relate to a composite shingle. The composite shingle includes a particle layer and a polyketone layer proximate to the particle layer.

An adhesive composition and use thereof for providing self-healing adhered roofing systems. The adhesive composition includes at least one rubber component, at least one organic solvent, and 12.5-40 wt.-% of at least one powdered superabsorber polymer, based on the total weight of the adhesive composition. Further, a self-healing membrane composite, to a method for forming a self-healing adhered roofing system, to a self-healing adhered roofing system and to use of at least one powdered superabsorber polymer in an adhesive for providing a self-healing adhered roofing system.

A roofing, cladding or siding product which is light weight, easy to install, durable and resistant to environmental wear. The module comprises an underlapping region and an exposed region, wherein the underlapping region is adapted to be at least partially covered by the exposed region of an adjacent module when installed on a building surface. The module also includes a textured surface area on an upper surface of the underlapping region and/or an underside of the exposed region. In use, the textured surface (e.g. made up from a densely packed group of cones, pyramids or cylinders) presents an increased surface area for improved contact with an adhesive. The adhesive, e.g. in strip form, may by located on an aligning part of an adjacent module with the textured surface area.

Various embodiments disclosed relate to a composite shingle. The composite shingle includes a particle layer and a polyketone layer proximate to the particle layer.

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 moisture curable, non-bitumen based and non-asphaltic based adhesive includes an extender, a compatibilizer, and a polymer, wherein the polymer includes reactive silyl groups.

An exemplary roofing system for covering an existing shingle roof with an exposure height measured between bottom edges of adjacent courses is disclosed. The roofing shingle system comprising includes a plurality of reroofing shingles. The reroofing shingles have an exposure portion extending from a top edge to a bottom edge for a height that is at least the exposure height of the existing shingle roof. At least one course of reroofing shingles is installed on at least one course of the existing shingle roof, wherein the course of the existing roof is covered by the at least one course of reroofing shingles. The top edge of the reroofing shingles abuts the bottom edge of the adjacent course of existing shingles.

Roofing shingles are disclosed that are capable of self-adhering to a roof deck or underlayment and/or other roofing shingles and that require few or no mechanical fasteners to remain attached to the roof. By appropriate positioning of sealant lines on the shingle, direct adhesion between the shingle and the roof deck or underlayment and/or other roofing shingles can be achieved. If the shingle is laminated, the layers may be mechanically attached with indentations in the common bond area. The nail zone of the shingle may be visually indicated with fines and/or one or more paint lines. A roofing system comprising a plurality of courses of the shingles is also disclosed.