Coating for a galvanized roof

blueshead | Posted in General Questions on May 6, 2013 09:50am

I live in South Louisiana and I have a galvanized rusty roof that I have to live with.

What is a good coating that I can use.. Thank you.

Answer

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Martin Holladay | May 06, 2013 11:15am | #1
Mark,
Any good paint store should be able to help you select the right paint for your galvanized roofing.

Most sources recommend that you begin by power-washing the roof.

Then you will need a primer designed for galvanized steel -- sometimes referred to as an etching primer -- followed by a paint designed for metal roofing.
blueshead | May 06, 2013 12:21pm | #2
I'm looking for a rubberized, waterproof coating.. With heat reflective ability.
Expert Member

Dana Dorsett | May 06, 2013 03:04pm | #3
The CRRC search function has a number of coating products listed, along with solar reflective index ratings. See:

http://coolroofs.org/

http://coolroofs.org/products/results

You'd have to consult the manufacturer for how to make it stick reliably over time on galvanized roofing, but I'm sure there are several that would work.
dankolbert | May 06, 2013 04:16pm | #4
Gaco makes a very nice product - http://www.gacoretail.com/gacoroof.html