Firewall (брэндмауэр, brandmauer) - an advertising structure located on the wall of a building. They are made of banner cloth, acrylic sheets, metal sheets, etc. 6x3 m boards located on walls are also classified as firewalls. Advantages: large size, can be placed in almost any part of the city, including the historical center. The sizes of firewalls can be very different, it depends on the size of the wall and the financial capabilities of the advertising company.
