finishing.com -- The Home Page of the Finishing Industry
no popups, no spam
HomeFAQsBooksHelpWantedsForum letter 60482
Serious Education ... plus the most fun you can have in metal finishing.

Galvanic corrosion nickel plated lightning rod on zinc coated roof

June 22, 2017

Q. I am installing a zinc coated copper roof, if they install a nickel plated lightning protection through it will there be an electrolysis between the 2 metals?

Robert Dillon
roofing - Vero Beach, Florida


July 2017

A. Hi Robert. Nickel plating is highly galvanically incompatible with zinc, and it's presence will accelerate galvanic corrosion of the zinc. However, it will probably not be a problem anyway because there is a lot more zinc than nickel, and rain water is not very conductive. A Bob Villa video claims the materials are compatible: although they're actually not, the experience of the installers is additional evidence that it probably won't actually be a problem. Good luck.

Regards,

pic of Ted Mooney
Teds signature
Ted Mooney, P.E. RET
finishing.com
Pine Beach, New Jersey
Striving to live "Aloha"

ADD a Q or A to THIS thread START a NEW THREADView This Week's HOT TOPICS


Disclaimer: It is not possible to diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous; some names may be fictitious and some recommendations may be deliberately harmful.

  If you need a product/service, please check these Directories:

JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & Devices


©1995-2017 finishing.com     -    Privacy Policy
How Google uses data when you visit this site.