37 Providing online information relating to building construction; application of waterproof coatings for roofs; installation of insulating materials in roofs; roofing services; roofing installation; installing of insulation of roofing; dismantling of roofs; installation of roof timbering; clearing and cleaning gutters; installation of insulating materials in buildings, roofs and structures; installing of insulating of internal and external walls, ceilings and roofs; installation of felt roofs; maintaining and repair of roof guttering; building restoration; restoration of architectural works; renovation and restoration of buildings; mechanic services; installation, maintenance and repair relating to machine tools, conveyors and transporting machines, namely, services relating to machine tools, drives for conveyor installations, automatic conveyor installations, assembly line conveying machines, conveyor installations, conveyor belts, in particular belt conveyors and roller conveyors, and relating to conveying chains, conveyor cages, conveyors, feed pumps, screw conveyors, and blowing machines being parts of conveyors installations; installation, maintenance and repair relating to machine tools, conveyors and transporting machines in the nature of staged and segmented conveyors, hydraulic conveyor belts, bucket rails for conveyor installations, magnetic conveyors, mechanical and pneumatic conveyors, robotic mechanisms for conveying, roller machines, rotating screw conveyors, transportation devices, lifting machines for transporting bulk materials, machines for transporting, transporting machines, and transportation robots; installation, maintenance and repair relating to machine tools, conveyors and transporting machines in the nature of mechanically operated feed and setting devices for fastening and connecting elements of metal and plastic, and of electric or pneumatic or electric and pneumatically operated hand-held joining machines, in particular handheld friction welding machines, and of fastening and connecting machines, equipment and apparatus, and of connecting mechanisms; installation, maintenance and repair relating to machine tools, conveyors and transporting machines in the nature of fastening machines for inserting fasteners into components, machines for incorporating fasteners, sorting machines, separating machines, conveying machines for fasteners, conveying machines for connectors, setting devices for fasteners joining machines, mechanically operated joining apparatus, and friction welding apparatus; installation, maintenance and repair relating to machine tools, conveyors and transporting machines in the nature of screwing apparatus with electromotive drives, tools, spare parts and wear segments; providing online information relating to roof renovation from a computer database or the internet