WJE Primer: Galvanized Nails


Galvanizing refers to a coating of zinc applied to the surface of ferrous metal to impart corrosion resistance. Why is it called galvanizing? Believe it or not, the electrochemical reaction between metals was inadvertently discovered by Italian physician Luigi Galvani in 1772 during an experiment which ultimately showed that the muscles of frogs’ legs twitched when exposed to electricity.

In this WJE Primer article, Jeffrey Levine takes a close look at two common methods used to impart corrosion resistance in today’s galvanized roofing nails.