Roof conductor holder for fastening additional air-termination devices such as air-termination conductors on metal roofs. Version with base plate and adhesive pad e.g. for trapezoidal roofs, with DEHNsnap conductor holder, loose cable routing, made of weather-resistant plastic, UV-stabilized and halogen-free. The conductor holder can be used on smooth (non-structured) surfaces such as metal roofs / metal surfaces. The conductor holders are fixed to the roof by gluing (remove protective film).