The protection of the brick fence should be thought even during its construction, the main reason, which reduces the operation of such a fence, is to protect against rains after the fence is completely erected should be strengthened on top of the sheet metal. It should be located so that moisture cannot be penetrated into brickwork. In time, the installed such sheet metal makes it possible to use such a fence for many years. Of course, the installed sheet metal should also be protected from water, for this it is usually covered with paint. And do not worry if you show out after a while that the paint on the sheet sheet was peeled and rust appeared on the metal, this can be easily and quickly eliminated.
