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Heat dissipation and protection of a galvanized roof
My house have a galvanized roof and I would like to:
1-Paint it with a paint that can help dissipate the heat.
2-Paint last longer.
3-Know the best way to paint it, due to is a waive form surface.
Ismael Latorre
- Mayaguez, Puerto Rico
Hi, Ismael. There are ceramic paints and white paints which can reduce the thermal load. However, getting good adhesion to galvanized metal is usually an issue. I would suggest scrubbing the roof with a brush and
trisodium phosphate
⇦ on
eBay
or
Amazon [affil link]
, then wiping with vinegar
⇦in bulk on
eBay
or
Amazon [affil link] , then applying a latex
Galvanize Primer
⇦ on
eBay or
Amazon [affil link]
[affil link] before applying any top coat. Good luck.
Regards,

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Ted is available for instant help
or longer-term assistance.
June 1, 2009
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