Definitions for claddingˈklæd ɪŋ
Random House Webster's College Dictionary
(adj.)the act or process of bonding one metal to another, usu. to protect the inner metal from corrosion.
metal bonded to an inner core of another metal.
Origin of cladding:
a protective covering that protects the outside of a building
Any hard coating, bonded onto the outside of something to add protection, such as the plastic sheath around an optical fiber.
a weatherproof, insulating or decorative covering fixed to the outside of a building (called siding in the US).