Otherwise copper will do what it does best and quickly oxidize and turn green.
New copper roof use polyurethane.
Everbrite is clear and will seal your copper roof without changing the beauty of the copper.
Stop tarnish on your cupola finial copper gutters sundial mailboxes and more.
Polyurethane roof coatings provide excellent flexibility meaning temperature swings and ponding water are no problem.
Polyurethane treatment keeps a copper roof shiny for a few years but will require reapplying every so often.
The use of a tediar film for coil coating is a new innovation.
The extremely long life of tedlar coatings in outdoor applications provides savings in maintenance expenses which may justify the added expense of coating.
They are becoming a much more common roofing material thanks to their durability.
If however you want your copper roof to develop the soft green patina that copper naturally gets when oxidizing you can apply a specially designed safe coating that simulates that aged copper finish.
This will prolong the patination of your copper roof and postpone the natural green color that comes with natural oxidization as seen below.
To choose which one consider how the joint is going to expand and how flexible the sealant needs to be.
Some copper roofing products come factory treated to keep your roof looking new and freshly cleaned.
If you want to retain the freshly revealed copper shine spray or roll paint the entire roof with a clear lacquer or a clear polyurethane coating.
The working temperatures of polyurethanes are limited from 40 degrees to 95 degrees.
Check out our new illustrated directions.
If you use a clear coating designed for brass or copper you should not need to acid etch to get proper adhesion.
Use everbrite protective coating to protect copper deck caps from tarnishing.
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Single part polyurethanes typically are moisture cured and the two part sealants are chemically cured.
Why copper roofs change color.
If you topcoat that with an exterior urethane lacquer you should expect another one to three years of service.
Everbrite coating is all you ll need.
Adhesion of coatings to copper and its alloys can be a problem.
Wipe the copper with a clean solvent to remove any mill oil or contaminants and apply 2 3 coats of everbrite for long lasting results.
Modified polyether polyether modified polyethers have become a new force in the sealant industry.
A one part exterior brass lacquer should give two to four years of protection.
The tack free time of polyurethane is typically four hours.
Like the color of your roof and want to keep it that color.
When first installing your copper roof you can preserve the shine by coating the entire copper roof with a clear polyurethane coat or a clear lacquer to preserve the natural new shine of your copper roof.
Stop tarnish and oxidation and enjoy the beauty.
Best sealant for copper the copper development association cda publishes an architectural design handbook.
