摘要:
A photovoltaic module includes an encapsulated photovoltaic element and an infrared-transmissive decorative overlay simulating conventional roofing.
摘要:
A roofing membrane with high solar heat reflectance includes a bituminous base sheet, a tie-layer with a reinforcement material, and a solar heat-reflective upper layer.
摘要:
A roofing granule can include a material including a transition metal carbonate; a mixed metal carbonate, wherein at least one metal within the mixed metal carbonate includes a transition metal; a first metal carbonate and a second metal compound, wherein the first and second metals are different metal elements; a third metal carbonate and silica; or any combination thereof. A process of forming a roofing granule can include providing a base particle having pores, and infiltrating a fluid into the pores of the base particle, wherein the fluid includes a carbonate. The process can further include reacting the carbonate with a metal compound within the base particle to form a metal carbonate, wherein the roofing granule comprises a material that includes the metal carbonate.
摘要:
The present invention relates generally to photovoltaic devices, and more particularly to photovoltaic roofing products in which photovoltaic elements are affixed to roofing substrates. In one embodiment of the invention, a photovoltaic roofing panel comprising a roofing panel substrate having a top surface; and at least six discrete photovoltaic elements affixed to the roofing panel substrate with their photovoltaically-active areas exposed at the top surface of the roofing panel. Another embodiment of the invention is a photovoltaic roofing assembly comprising: a plurality of discrete photovoltaic roofing elements, each comprising one or more photovoltaic elements affixed to a roofing substrate; and a joining member, wherein the plurality of photovoltaic roofing elements are disposed on and affixed to the joining member and are electrically interconnected.
摘要:
The present invention relates generally to photovoltaic devices. The present invention relates more particularly to photovoltaic roofing products in which a photovoltaic element is joined to a roofing substrate. In one embodiment, the present invention provides a photovoltaic roofing element comprising: an encapsulated photovoltaic element having a top surface and a bottom surface, a top layer material at its top surface and a bottom layer material at its bottom surface; a roofing substrate having a top surface; and a tie layer system disposed between the encapsulated photovoltaic element and the roofing substrate and joining the bottom surface of the encapsulated photovoltaic element to the top surface of the roofing substrate.
摘要:
An exterior surface covering has a colored outer layer that transmits infrared radiation and an inner layer with a thermochromic pigment that absorbs heat at low temperature and reflects at high temperatures. The outer layer conceals the color change of the thermochromic pigment.
摘要:
An infrared-reflective material is applied directly to the bituminous surface of a roofing product to increase the solar heat reflectance of the product, even when deep-tone roofing granules are used to color the product. The infrared-reflective material can be applied as a powder or in a carrier fluid or film, and can be applied along with infrared-reflective roofing granules.
摘要:
A photovoltaic module includes an encapsulated photovoltaic element and an infrared transmissive decorative overlay simulating conventional roofing.
摘要:
An exterior surface covering has a colored outer layer that transmits infrared radiation and an inner layer with a thermochromic pigment that absorbs heat at low temperature and reflects at high temperatures. The outer layer conceals the color change of the thermochromic pigment.
摘要:
A photovoltaic module includes an encapsulated photovoltaic element and an infrared transmissive decorative overlay simulating conventional roofing.