The authoritative public forum
  for Metal Finishing since 1989
-----

Best protection for galvanized roof of old dairy barns?

We have 60-year-old galvanized dairy barns that are starting to corrode. What is the best protection for them. If paint, what kind. We'd like to keep the original look as much as possible.

Dennis Botefur
ranch - Eagle Point, OR, USA
2005

---

Hi Dennis,

Have a look at 5d # 38128 .... this is about using asphalt, albeit for a nasty corrosion application.

Yes, I know it's black ... but then if it lasts and lasts, then Black is Beautiful, eh?

Freeman Newton [deceased]
(It is our sad duty to advise that Freeman passed away
April 21, 2012. R.I.P. old friend).
2005

---

I would recommend using a painted finish professionally applied. The surface preparation is very important. I would think that an epoxy primer followed by a urethane final coat would be best. I suggest that you find a good, commercial painter who is experienced at applying these type coatings. You might contact the paint suppliers to get recommendations on both the type of paint, and the names of commercial applicators in your area. Look in an industrial directory for High Performance Coatings to get the name of the paint manufacturers.

Daryl Spindler, CEF
decorative nickel-chrome plating - Greenbrier, Tennessee
2005