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.

A roofing system includes shingles having a front surface, a rear surface, an upper portion, and a lower portion. The lower portion is wider than the upper portion. A tongue extends from the upper portion and overlaps the lower portion, thereby defining a first groove between the tongue and the front surface of the lower portion. A return extends from an end of the lower portion opposite the upper portion, thereby defining a second groove between the return portion and the rear surface of the lower portion.

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.

A shingle includes a substrate having an asphalt coating on a top surface of the substrate and on a bottom surface of the substrate. A surface layer of granules is embedded in the asphalt on the top surface of the substrate. A backdust layer of particles is embedded in the asphalt on the bottom surface of the substrate. A sealant is disposed on the backdust. A hydrophobic material is applied to the sealant.

Some embodiments of the present disclosure relate to an article comprising a reinforced glass mat. In some embodiments, the reinforced glass mat includes a glass mat and a reinforcement material. In some embodiments, the glass mat includes a web of glass fibers. In some embodiments, the reinforcement material is embedded into the web of glass fibers of the glass mat. In some embodiments, the reinforced glass mat includes a sufficient amount of the reinforcement material, so as to result in a nail shank shear resistance of 13 lbs to 17 lbs, when the article is tested according to ASTM 1761 at 140° F. Methods of making the article, specific embodiments of the reinforcement material in the form of a polymeric binder, and methods of forming a roofing shingle from the article are also disclosed.

An uncolored roofing granule including a low solar absorption base and a low solar absorption and solar opaque coating presented on the base, the coating including a binder, a pigment, wherein the binder includes a curable component and a non-clay, thermally reactive curing agent.

The present invention relates to relates to a method of producing an improved asphalt. This method includes providing an asphalt binder and providing a compound of formula (I): ##STR00001##
as described herein. The asphalt binder is mixed with the compound of formula (I) under conditions effective to produce an improved asphalt. Also disclosed are an asphalt product and a method of making asphalt material.

The present disclosure relates to roofing shingles and palleted pluralities thereof that have a reduced susceptibility to damage during shipment.

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.

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.