https://www.careerexplorer.com/careers/sheet-metal-worker/

What are the activities of the building tinsmith?
Manufacture, fitting and repair of sheet metal parts and products from galvanised steel sheet, copper, aluminium or other material, cutting sheets to dimensions specified in drawings, sheet bending, reinforcing, drilling, assembling, riveting and soldering detailed parts into assemblies – manufacture of construction elements such as hooks, guttering, and drain pipes etc.), metal cladding of tanks, doors, repair of vessels, fitting and repair of sheet cladding for walls, cornices and balconies, – assembly and repair of gutters, vertical pipes and elbows, sheet cladding of chimneys in all types of roofs – sheet cladding of all types of elements used on the façade of a building, – fitting and repair of metal roof covering, production and repair of tin products of an artistic or stylish character (such as kettles, gargoyles, extension pieces according to design or to fit the original elements, – manufacture, fixing and repair of roof covering for roofs of special shape (pyramidal, conical, cupola, etc.)

Roofers typically do the following:
• Inspect problem roofs to determine the best way to repair them
• Measure roofs to calculate the quantities of materials needed
• Replace damaged or rotting joists or plywood
• Install vapor barriers or layers of insulation
• Install ventilation systems
• Install shingles, asphalt, metal, or other materials to make the roof weatherproof
• Align roofing materials with edges of the roof
• Cut roofing materials to fit around walls or vents
• Cover exposed nail or screw heads with roofing cement or caulk to prevent leakage
https://www.truity.com/career-profile/roofer

They don't nail on tiles, so 'roofer' is too generic. They certainly don't work with tin.

"A roof sheeter or cladder fixes large weatherproof sheets of different material to roofs (sheeting) or walls (cladding)."
https://www.planitplus.net/JobProfiles/View/634/45