Protective system for walls of buildings or containers

A building, container or industrial plant, comprising:

• a wall;
• a protective system disposed on said wall at least in regions in an expected impact region, said protective system containing:
• a buffer layer disposed on an impact side of said wall and absorbs an impact energy of an impact load predominantly by plastic deformation, said buffer layer containing:
• a deformation lattice formed by a substantially regular configuration of unit cells forming a number of lattice layers;
• a deformable damping material filling intermediate spaces in said deformation lattice, said deformable damping material being a fiber-reinforced foamed concrete;
• and
• each of said unit cells composed of a plurality of lattice struts forming edges of a pyramid.