A structured material is provided that includes a substrate and a porous structured polymer layer disposed thereon. The porous structured polymer layer includes a plurality of voids, and has a high hemispherical reflectance a high a hemispherical thermal emittance. The structured material is thus particularly advantageous for cool-roof coatings, enabling surfaces coated by the material to stay cool, even under strong sunlight. The material can be produced via structuring of polymers in a mixture including a solvent and a non-solvent. Sequential evaporation of the solvent and the non-solvent provide a polymer layer with the plurality of voids.

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.

A method including coating a liquid aqueous silicone elastomer-containing composition onto a surface of a building roof substrate, wherein the building roof substrate is an element of a standing building roofing system, and then drying the liquid aqueous silicone elastomer-containing composition resulting in forming a topcoat on the building roof substrate.

A method including coating a liquid aqueous silicone elastomer-containing composition onto a surface of a building roof substrate, wherein the building roof substrate is an element of a standing building roofing system, and then drying the liquid aqueous silicone elastomer-containing composition resulting in forming a topcoat on the building roof substrate.

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.

Some embodiments of the present disclosure relate to a method comprising obtaining a mixture comprising at least one vinyl polymer, at least one organic acid, and at least one hydronium ion donor. In some embodiments, the method comprises reacting an —OH group of the B polymer chain segment with the at least one organic acid in the presence of the at least one hydronium ion donor, so as to form at least one polyvinyl ester. Some embodiments of the present disclosure relate to a roofing material comprising at least one reinforcement material and at least one polyvinyl ester.

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.

Disclosed herein are elastomeric roof coatings containing a block-copolymer, for example for use as a dispersant. In some embodiments, the roof coating compositions can comprise an all-acrylic or styrene-acrylic latex comprising a block-copolymer used in the latex polymerization. The block-copolymers have a molecular weight exceeding 5000 g/mol wherein the block copolymer has a first block comprising of alkyl acrylate and a second block comprising units of an ethylenically unsaturated monomer with sulfonic acid groups.

The modified elastomeric roof coating compositions are advantageous for reasons of water resistance, wet adhesion, tensile strength, and elongation. Methods of making and using the elastomeric roof coating compositions are also disclosed.

Disclosed herein are elastomeric roof coatings containing a block-copolymer, for example for use as a dispersant. In some embodiments, the roof coating compositions can comprise an all-acrylic or styrene-acrylic latex comprising a block-copolymer used in the latex polymerization. The block-copolymers have a molecular weight exceeding 5000 g/mol wherein the block copolymer has a first block comprising of alkyl acrylate and a second block comprising units of an ethylenically unsaturated monomer with sulfonic acid groups.

The modified elastomeric roof coating compositions are advantageous for reasons of water resistance, wet adhesion, tensile strength, and elongation. Methods of making and using the elastomeric roof coating compositions are also disclosed.