摘要:
Roofing granules include a core having an average ultraviolet transmission of greater than 60 percent and an average near infrared reflectance of greater than 60 percent and a UV coating layer on the exterior surface. The coating provides UV opacity, while the core provides near infrared reflectance.
摘要:
Exemplary embodiments of a thermoplastic polyolefin membrane are provided. The colored TPO membrane can have a cap layer having a top color layer and a white sub-layer having a solar reflectance underneath the top color layer, and a core layer underneath the cap layer. The colored TPO roofing membrane can have a reinforcing polyester scrim between the cap layer and the core layer. The white sub-layer can be made up of one or more layers.
摘要:
Roofing granules include a core having an average ultraviolet transmission of greater than sixty percent and an average near infrared reflectance of greater than sixty percent and a UV coating layer on the exterior surface. The coating provides UV opacity, while the core provides near infrared reflectance.
摘要:
A coating composition including an inorganic sol material and an organic colorant is applied to mineral particles and cured at a temperature less than 200 degrees Celsius provides roofing granules with improved luster.
摘要:
A roofing product includes coating a substrate with bitumen to yield a bitumen coated substrate having an exposure zone. First granules are adhered to the exposure zone to yield a first granule coating. The first granules have a solar reflectance greater than 35. An adhesive is adhered to at least a portion of the first granule coating. An open portion of the first granule coating that is free of the adhesive is maintained. An overlay of non-white second granules is adhered to the adhesive, such that the overlay of second granules and the adhesive provide a raised structure above a plane of the first granule coating.
摘要:
A process for preparing roofing granules includes forming kaolin clay into green granules and sintering the green granules at a temperature of at least 900 degrees Celsius to cure the green granules until the crystalline content of the sintered granules is at least ten percent as determined by x-ray diffraction.
摘要:
An Infra Red-reflective architectural paint composition comprising: i. red iron oxide pigment ii. phthalocyanine blue pigment iii. titanium dioxide and optionally yellow iron oxide wherein the composition is free of Infra Red-absorptive black pigments, Infra Red-transparent black pigments and Infra Red-reflective black pigments, has a lightness value, L*, when dry, of from 38 to 88 and the weight ratio of i:ii is from 3:1 to 15:1.
摘要:
Disclosed are solar-reflective building materials, including roofing articles, that include nanoparticle-containing thin films; such articles display high reflectance of near-infrared radiation and high transmission of radiation in the visible light range so as to reduce the heat island effects experienced by the articles while also maintaining an aesthetically pleasing appearance. Also disclosed are related methods of fabricating such articles.
摘要:
Disclosed are solar-reflective roofing and other building materials having high reflectance of near-infrared radiation and high transmission of radiation in the visible light range and a substantial emissivity so as to reduce the heat island effects experienced by the articles while also maintaining an aesthetically pleasing appearance. Also disclosed are related methods for fabrication of such materials.
摘要:
Disclosed are solar-reflective roofing and other building materials having high reflectance of near-infrared radiation and high transmission of radiation in the visible light range and a substantial emissivity so as to reduce the heat island effects experienced by the articles while also maintaining an aesthetically pleasing appearance. Also disclosed are related methods for fabrication of such materials.