Photovoltaic roof-top components, a photovoltaic IRMA roofing system, and a photovoltaic roofing system

摘要

An improved photovoltaic roofing system ( 10 ) includes a roofing membrane ( 12 ) overlying a top surface ( 14 ) of a roof deck ( 16 ), an insulation layer ( 18 ) above the roofing membrane ( 12 ) and a photovoltaic panel ( 20 ) above the insulation layer ( 18 ). The improved photovoltaic insulation layer ( 18 ) component defines a predetermined number of drainage channels ( 30 ) between the insulation layer ( 18 ) and the roofing membrane, and/or a predetermined insulation layer thickness, and the predetermined number of drainage channels ( 30 ) and/or thickness is a function of variable drainage requirements and/or variable insulation requirements of the roofing system ( 10 ). A photovoltaic IRMA roofing system ( 72 ) replaces traditional IRMA roofing system ( 73 ) ballast materials ( 79 ) with a combined weight of concrete topped ( 83 ) insulation layer and photovoltaic panels ( 80 ) to meet a predetermined minimum weight per unit area requirement of a specific roofing system ( 72 ).