New Copper Roof Use Polyurethane

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New copper roof use polyurethane.

The use of a tediar film for coil coating is a new innovation. The working temperatures of polyurethanes are limited from 40 degrees to 95 degrees. 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. If you topcoat that with an exterior urethane lacquer you should expect another one to three years of service.

Polyurethane treatment keeps a copper roof shiny for a few years but will require reapplying every so often. Polyurethane roof coatings provide excellent flexibility meaning temperature swings and ponding water are no problem. Adhesion of coatings to copper and its alloys can be a problem. Check out our new illustrated directions.

Some copper roofing products come factory treated to keep your roof looking new and freshly cleaned. Stop tarnish and oxidation and enjoy the beauty. A one part exterior brass lacquer should give two to four years of protection. Why copper roofs change color.

Like the color of your roof and want to keep it that color. Best sealant for copper the copper development association cda publishes an architectural design handbook. 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. It specifies an elastomeric polyurethane polysulfide butyl or silicone rubber sealant for copper.

Everbrite coating is all you ll need. Otherwise copper will do what it does best and quickly oxidize and turn green. This will prolong the patination of your copper roof and postpone the natural green color that comes with natural oxidization as seen below. Single part polyurethanes typically are moisture cured and the two part sealants are chemically cured.

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. If you use a clear coating designed for brass or copper you should not need to acid etch to get proper adhesion. To choose which one consider how the joint is going to expand and how flexible the sealant needs to be. They are becoming a much more common roofing material thanks to their durability.

Use protectaclear for interior metal or metal that gets heavy use like railings. Tediar coated metal also may be formed. Modified polyether polyether modified polyethers have become a new force in the sealant industry. 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.

Use everbrite protective coating to protect copper deck caps from tarnishing. The extremely long life of tedlar coatings in outdoor applications provides savings in maintenance expenses which may justify the added expense of coating.