Bronze house number plaque can either be made up of pure bronze metal or there is a coating used over the metal. In both the cases the life of the metal increases. With the passage of time there might be some changes in the metal, getting corrosion over the metal is a very usual thing. There are some obvious reasons that cause carrion of the metal. When the metal is exposed to the air, the moisture present in the air can cause corrosion. There are some revival and restoration techniques that should be applied on to the bronze house number plaque. Bronze house number plaque keeps it attractive and long lasting.