New Copper Roof Use Polyurethane

Best sealant for copper the copper development association cda publishes an architectural design handbook.

New copper roof use polyurethane.

If you topcoat that with an exterior urethane lacquer you should expect another one to three years of service. Why copper roofs change color. Some copper roofing products come factory treated to keep your roof looking new and freshly cleaned. To choose which one consider how the joint is going to expand and how flexible the sealant needs to be.

If you use a clear coating designed for brass or copper you should not need to acid etch to get proper adhesion. New albany in 47150 telephone. Otherwise copper will do what it does best and quickly oxidize and turn green. They are becoming a much more common roofing material thanks to their durability.

Stop tarnish and oxidation and enjoy the beauty. Single part polyurethanes typically are moisture cured and the two part sealants are chemically cured. This will prolong the patination of your copper roof and postpone the natural green color that comes with natural oxidization as seen below. The working temperatures of polyurethanes are limited from 40 degrees to 95 degrees.

Modified polyether polyether modified polyethers have become a new force in the sealant industry. It specifies an elastomeric polyurethane polysulfide butyl or silicone rubber sealant for copper. The extremely long life of tedlar coatings in outdoor applications provides savings in maintenance expenses which may justify the added expense of coating. Use protectaclear for interior metal or metal that gets heavy use like railings.

The use of a tediar film for coil coating is a new innovation. Everbrite coating is all you ll need. 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.

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. Stop tarnish on your cupola finial copper gutters sundial mailboxes and more. 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. Everbrite is clear and will seal your copper roof without changing the beauty of the copper.

Tediar coated metal also may be formed. The tack free time of polyurethane is typically four hours. 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.

Like the color of your roof and want to keep it that color. Check out our new illustrated directions.