The term 'Building Topper' refers to a person who is responsible for the installation and maintenance of roofs on buildings. This job requires a great deal of skill and knowledge in order to ensure that the roof is properly installed and maintained. The crossword solutions for this term are 'ROOFS', which is an acronym for Roofing, Overhangs, Outlets, Flashing, and Sealing. These five components are essential for a successful roof installation and maintenance.