A method of forming a roofing-grade asphalt mixture can include mixing a bio-asphalt including a partially oxidized bio-source material, a bitumen source material different from the bio-asphalt, and particles to form the roofing-grade asphalt mixture. In an embodiment, the bitumen source material can have a softening point of at least approximately 102° C. and a penetration distance no greater than approximately 20 dmm. In another embodiment, the roofing-grade asphalt mixture can have a softening point of at least approximately 104° C., a penetration distance no greater than approximately 12 dmm, a viscosity of at least approximately 3000 cps at a temperature of 177° C., or any combination thereof. The roofing-grade asphalt mixture can be applied to a base material to form a roofing product.

An asphalt composition for use as a shingle roof coating is described. The asphalt composition includes a first asphalt feedstock and a first concentrate. The first concentrate includes an elastomeric polymer and an asphalt flux. The asphalt composition includes 0.5% to 6% by weight of the elastomeric polymer. The elastomeric polymer includes a styrenic block copolymer. The first concentrate includes 3% by weight to 25% by weight of the styrenic block copolymer. The first concentrate includes 3% by weight to 15% by weight of one of an ethylene polymer and an ethylene propylene copolymer. The first concentrate has a penetration of at least 100 dmm.

A shingle comprises an overlay, an underlay, and a height increasing material disposed between the overlay and the underlay. The height increasing material includes a first adhesive adhered to the overlay, height increasing granules adhered to the first adhesive, and a second adhesive adhered to the height increasing granules and the underlay. The height increasing material can extend along front ends of tab portions of the overlay, along front cutout edges that extend between tab portions of the overlay, or both.

There is described a binding resin for nonwoven fabrics, in particular for manufacturing supports for bituminous membranes, consisting of 100% natural, sustainable raw materials. The resin is an aqueous solution consisting of starch, a crosslinking agent of natural origin and a catalyst.

A method of forming an asphalt mixture can include mixing a bio-source material and a bitumen source to form a bitumen mixture. The bitumen mixture can be mixed with a catalyst to form the asphalt mixture. Particles can be added to the asphalt mixture to form a roofing-grade asphalt mixture. In an embodiment, the bitumen source material can have a softening point of at least approximately 93 C. and a penetration distance no greater than approximately 25 dmm. In another embodiment, the roofing-grade asphalt mixture can have a softening point of at least approximately 104 C., a penetration distance no greater than approximately 12 dmm, a viscosity of at least approximately 3000 cps at a temperature of 204 C., or any combination thereof. The asphalt mixture can be applied to a base material to form a roofing product. The asphalt mixture can be applied as a pavement product.

A method for generating a shingle roof coating is described. The method includes receiving an asphalt feedstock and separately proceeds to mix an elastomeric polymer and an asphalt flux to generate a first concentrate. The first concentrate is then heated separately from the asphalt feedstock. The method then mixes the first concentrate with the asphalt feedstock and heats the combined first concentrate and the asphalt feedstock to generate the shingle roof coating. The amount of elastomeric polymer in the first concentrate is adjusted based on the type of asphalt feedstock such that the resulting shingle roof coating includes 0.5% to 6% by weight of the elastomeric polymer.

A method of forming a roofing-grade asphalt mixture can include mixing a bio-asphalt including a partially oxidized bio-source material, a bitumen source material different from the bio-asphalt, and particles to form the roofing-grade asphalt mixture. In an embodiment, the bitumen source material can have a softening point of at least approximately 102 C. and a penetration distance no greater than approximately 20 dmm. In another embodiment, the roofing-grade asphalt mixture can have a softening point of at least approximately 104 C., a penetration distance no greater than approximately 12 dmm, a viscosity of at least approximately 3000 cps at a temperature of 177 C., or any combination thereof. The roofing-grade asphalt mixture can be applied to a base material to form a roofing product.

A prefabricated modified bitumen waterproofing membrane includes a middle layer formed of a non-woven polyester and/or fiberglass reinforcement fabric, an upper layer and a bottom layer of bitumen asphalt modified with SBS (Styrene-Butadiene-Styrene), APP (Atactic Polypropylene) or TPO (Thermoplastic Polyolefin) polymers, aluminum flakes on a top surface of the upper layer, and polyolefin film covering the bottom layer. In a preferred embodiment, the aluminum flakes having a size ranging between 0.508 mm to 2.032 mm in length, 0.508 mm to 1.016 mm in width and 0.02 mm to 0.03 mm in thickness. The top surface, with aluminum flakes applied thereto, has a Solar Reflective Index (SRI) equal to or greater than 73, a reflectance of at least 0.72 and a thermal emittance of at least 0.18.

An asphalt composition for use as a shingle roof coating is described. The asphalt composition includes a first asphalt feedstock and a first concentrate. The first concentrate includes an elastomeric polymer and an asphalt flux. The asphalt composition includes 0.5% to 6% by weight of the elastomeric polymer. The elastomeric polymer includes a styrenic block copolymer. The first concentrate includes 3% by weight to 25% by weight of the styrenic block copolymer. The first concentrate includes 3% by weight to 15% by weight of one of an ethylene polymer and an ethylene propylene copolymer. The first concentrate has a penetration of at least 100 dmm.

A process for in-line extrusion of polymeric coatings onto roofing shingles during manufacturing includes moving a web of shingle substrate material in a downstream direction and extruding a liquefied coating of polymeric material onto at least one surface of the moving web to form a thin film. The liquefied coating may be a molten polymeric material that forms a thin film on a back surface of the shingle material to prevent sticking and eliminate the need for a traditional back dusting with material such as powdered stone. The polymeric film further may be applied to the substrate material in lieu of a saturation coating of asphalt, thus reducing cost and weight while providing a comparable moisture barrier and a lighter more flexible shingle.