A particulate composition suitable for protection against lightning is disclosed. The particulate composition comprises of a particulate matter comprising a mineral compound, preferably black tourmaline, capable of emitting negatively charged ions continuously, a grinding auxiliary agent, and a liquid medium. The particulate composition is embedded in a substrate, coating or mixed into the granules of composite roofing to protect people, objects and structures from lightning by developing a negatively charged cloaking shield to prevent the attraction of negatively charged lightning from striking. The composition infused or applied on a subject continuously emits negative ions sufficiently producing a protective electromagnetic cloaking shield restricting the wicking action of positive ions up from ground surface and thereby restricting the formation of positive streamers that reach upwards towards the stepped leaders of lightning.

The present disclosure relates generally to roofing elements and methods for making them. In one embodiment, the disclosure provides a roofing element in the form of a roofing shingle that includes a body of a foamed cured cross-linked polymer, the body having a top surface and a bottom surface, the body extending substantially in a plane and having a thickness in the range of 0.5 mm to 35 mm; and a layer of weather-resistant roofing granules disposed on and adhered at the top surface of roofing element. The roofing element can be made by providing a body of wet foamed curable composition, and allowing the curable composition to cure to provide the body of foamed cured cross-linked polymer.

Roofing granules having a color coating layer are covered with a clear, transparent or translucent outer coating composition including a functional material, such nanoparticles of anatase titanium dioxide.

Solar reflective roofing granules include a binder and inert mineral particles, with solar reflective particles dispersed in the binder. An agglomeration process preferentially disposes the solar reflective particles at a desired depth within or beneath the surface of the granules.

A method is provided for forming an adhered membrane roof system that meets Factory Mutual (FM) 4470/4474 standards for wind uplift. The method comprises applying a bond adhesive to a substrate on a roof to form an adhesive layer and applying a membrane directly to the adhesive layer. The bond adhesive includes a moisture-curable polymer.

Granules include a hydrophobic surface treatment. The hydrophobic surface treatment may include a hydrocarbon oil and a silicon-containing polymer, in which the hydrocarbon oil is present in an amount of at least 0.025 percent by weight, and the silicon-containing polymer is present in an amount of greater than 0.05 percent by weight of the roofing granules. The hydrophobic surface treatment may include silicon-containing polymer present in an amount of greater than 0.05, greater than 0.25 percent, or greater than 0.5 percent by weight of the roofing granules. Use of the granules as roofing granules is also disclosed. A construction article includes a substrate, an organic coating, and the roofing granules at least partially embedded in the organic coating. Methods of making the granules and the construction article are also disclosed.

Granules include a blend of porous, mineral-based granules and additional granules having a hydrophobic polymeric coating. Use of the granules as roofing granules is also disclosed. A construction article includes a substrate, an organic coating, and the roofing granules at least partially embedded in the organic coating. Methods of making and using the construction article are also disclosed.

Roofing granules include heat-treated, porous, mineral-based granules having a moisture absorption of at least seven percent by weight and a blend of such heat-treated, porous, mineral-based granules and additional granules having a moisture absorption of less than five percent by weight. Use of the granules as roofing granules is also disclosed. A construction article includes a substrate, an organic coating, and heat-treated, porous, mineral-based aggregate having a moisture absorption of at least seven percent by weight at least partially embedded in the organic coating. A method of making the construction article is also disclosed.

Provided is a seamless composite roofing system for a gravel built up surface. The system includes a first fluid application flood coat of bentonite emulsion applied over a gravel built up surface at a rate of 15 gallons per 100 square feet and a second fluid application flood coat of bentonite emulsion applied at a rate of 10 gallons per 100 square feet. The second flood coat includes approximately 3 to 6 pounds of chopped reinforced fiberglass per 100 square feet, and is applied over the first flood coat after the first flood coat cures. A fiberglass reinforcement layer with approximately 3 to 6 pounds chopped reinforced fiberglass per 100 square feet is applied over an area surrounding any roof top penetrations, followed by an elastic trowel grade mastic layer. An asphalt primer is then applied over the second flood coat, followed by a reflective Energy Star Rated top coat.

Provided is a seamless composite roofing system for a gravel built up surface. The system includes a first fluid application flood coat of bentonite emulsion applied over a gravel built up surface at a rate of 15 gallons per 100 square feet and a second fluid application flood coat of bentonite emulsion applied at a rate of 10 gallons per 100 square feet. The second flood coat includes approximately 3 to 6 pounds of chopped reinforced fiberglass per 100 square feet, and is applied over the first flood coat after the first flood coat cures. A fiberglass reinforcement layer with approximately 3 to 6 pounds chopped reinforced fiberglass per 100 square feet is applied over an area surrounding any roof top penetrations, followed by an elastic trowel grade mastic layer. An asphalt primer is then applied over the second flood coat, followed by a reflective Energy Star Rated top coat.