Bill Zahner is named an Honorary Member of the American Institute of Architects See More
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A. Zahner Co. was recognized by American Rights at Work in their 2008, "Labor Day List: Partnerships that Work".
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ZAHNER named 2007 Regional Entrepreneur of the Year by UMKC’s Bloch School of Business and Public Administration. See More

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Patent No. 5394666

The INVERTED SEAM^TM system is a unique panel system developed and perfected by Zahner for use on any variety of roof applications.  This system provides designers a smooth planer or curved surface, free of upstanding ribs or features. 

This system incorporates a concealed clipping system that acts as a pressure-equalized gutter for capturing water and directing it off of the surface.  The INVERTED SEAM^TM system panels also offer flexibility in integrating with other systems such as solar and photo voltaic paneling.

During development our INVERTED SEAM^TM system was subjected to extensive wind and pressure testing and proved to be much stronger than conventional standing seam panels.  The result is a sound, pressure-equalized joint system.

Due to its flexibility, the INVERTED SEAM^TM system can be constructed from a variety of metal types and can be applied to practically any shaped roof surface.  This type of panel accentuates the customer’s desired metal finish without seam interruption.

This system was used in context in Dallas-Fort Worth Airport, and Hunter Museum.