What does metalling mean?
Metalling, chiefly a British term, refers to the application of a thin layer of metal to the surface of another material. Such coatings may protect against corrosion, abrasion, or weathering, or they may be applied for decorative and electrical purposes. In a related British construction sense, metalling can also denote metal sheets used as a covering, especially for a roof. The word is less common in American English, where “metallizing” is generally preferred for the process. A typical example is the application of a galvanized coating to steelwork, although the technique can involve several different metals and coating methods. Understanding the term is useful when reading British building, engineering, manufacturing, or conservation documentation, where the distinction between a coating process and a physical metal covering may matter.
nounThe process of coating a surface with metal, often to protect it or improve its appearance; also, metal sheets used as a covering for a roof or similar structure.
- The process or technique of applying a layer of metal to another surface, commonly for protection, decoration, or improved conductivity.
- Metal sheets or a metal covering, especially one used to roof a building.
"The old steel gate had been repaired and given a fresh layer of metalling to prevent further rusting."
"Galvanized metalling provides a durable protective finish for exposed metalwork."
"The builders installed new sheet metalling over the old roof."
In British English, metalling can mean not only the coating process but also the metal sheeting used to cover a roof.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does metalling come from?
The word is formed from “metal” with the suffix “-ing,” denoting an applied coating or the resulting covering. “Metal” comes through Old French from Latin “metallum,” which was borrowed from Greek “metallon,” referring to a metal or a place where metals were obtained. The form “metalling” developed in British usage and is parallel with the American variant “metallizing.”
Related word forms
How metalling is actually used
Chiefly British. American English more commonly uses “metallizing” or “metal coating.” The roofing sense is particularly associated with British and Commonwealth English.
Easily confused with metalling
Metalling is the usual British term, while metallizing is the standard American equivalent for coating a surface with metal.