Abstract: A roof anchoring apparatus includes roof-pressing assemblies for placement on a roof of a building structure. The roof-pressing assemblies are arrayed on the roof from one edge of the roof to another edge of the roof. Each roof-pressing assembly includes a roof-pressing portion which has a top side and a bottom side. One or more cable locking assemblies project upward from the top side of the roof-pressing portion. First cables are connected between neighboring roof-pressing assemblies. Second cable assemblies are provided, and each second cable assembly has a first end and a second end. The first end of each second cable assembly is connected to one of the roof-pressing assemblies located at an edge of the roof. Ground-engaging assemblies are provided, and each ground-engaging assembly is connected to a second end of a second cable assembly. The roof-pressing portions may be in the form of plates or L-shaped brackets. Crosspiece members may be placed between the L-shaped brackets and the roof.