Roofing consultation; Roofing contracting; Roofing installation; Roofing maintenance; Roofing maintenance services; Roofing repair; Roofing services; Installation and maintenance of solar energy based power plants; Installation and maintenance of solar thermal installations; Installation and maintenance of photovoltaic/solar thermal hybrid installations; Installation of solar energy systems and alternative energy products for residential and commercial use; Installation of solar heating systems; Installation, maintenance and repair of solar collectors; Installation, maintenance and repair of solar installations for generating power; Installation, maintenance and repair of solar installations for generating power, solar collectors and photovoltaic modules; Maintenance of roofing; Repair and installation services, namely, the installation of heating, cooling and environmental control systems primarily using solar energy, renewable energy resources and rainwater; Repair of roofing