News & Updates

The North American Copper Awards has recognized Zahner's copper metal-work for the Waipolu Gallery in Oahu, Hawaii.

Zahner completed the New Academic Building at Cooper Union in New York City. See the time-lapse construction video at Videos & Downloads.

President and CEO Bill Zahner is featured in the August Issue of Wired Magazine, where he has now been dubbed, the "Alpha Geek" of Metal. Read Article

The NASCAR Hall of Fame project reached 1,000,000 man-hours without a "lost-time" accident milestone recently. In recognition for Zahner's achievement TBEKD presented a plaque to Zahner
See more awards

Bill Zahner named an Honorary Member of the American Institute of Architects.

Introducing the Hands of the Artist™ division, where Zahner engineers and craftsmen produce projects for artists.

Dirty Penny™

Zahner Preweathered Copper Patina and Oxidation

Dirty Penny™ Oxidation process was developed by Zahner to offer artists and architects a preweathered copper with dark tones ranging from blues to greens and reds - it has a certain iridescence like water reflected on an slick surface.

The Dirty Penny Patina has been used on a range of projects, most notably, the Hoag Rawlings Building, pictured below.

Like any patina we offer on copper, the Dirty Penny™ Surface will evolve with time. The oxidized layer is like a living protecting barrier which grows stronger as it further oxidizes. Unlike paint, which peels and deteriorates, Dirty Penny™ patina will age like a vintage wine, it's protective qualities growing stronger as it does.