⟩ Tell me for what building Built-on balconies are preferable? What are the advantages?
Built on balconies are mainly designed for retrofitting older buildings. This free standing balcony is supported in front of the facade on four columns. They are backed to the wall with brackets.
The advantage of built-on balconies are
☛ Old balconies can be dismantled, and the new ones can be erected immediately in front of the faced without disturbing the inner structure of the building
☛ The work takes place outside of the house, so there is no interference to the interior of the building