painting an aluminum roof | Ask The Experts Forum

james dady 9/18/2009	need to know the correct process for painting an aluminum roof. the surface has considerable wear and rust(aluminum oxide?)but is still structurally sound. will pressure washing with tsp at 3500psi do any damage to the zinc? coating. also, can u sand without damaging to get a smoother surface if pressure washing doesnt do the trick. what products do u recommend?	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/13893/find/
Todd Miller Isaiah Industries, Inc. 9/19/2009	I am a bit confused. You say the roof is aluminum but then you mention a zinc coating. An aluminum roof would not have a zinc coating. The pressure washing is fine. But do not sand a roof with a zinc coating and I'd ty avoid sanding with aluminum as well. Go to a quality paint store and they will have a primer and topcoat system to recommend for you.	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/13894/find/
Todd Miller Isaiah Industries, Inc. 9/19/2009	I am a bit confused. You say the roof is aluminum but then you mention a zinc coating. An aluminum roof would not have a zinc coating. The pressure washing is fine. But do not sand a roof with a zinc coating and I'd try to avoid sanding with aluminum as well. Go to a quality paint store and they will have a primer and topcoat system to recommend for you.	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/13895/find/
Aaron Scurlock The Best in Polymer Roofing Soutions 9/24/2009	Also, an aluminum roof will not rust.	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/13896/find/

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