Mark Zehnal

Mark Zehnal is director of technical services with the Florida Roofing and Sheet Metal Association. A version of this article originally appeared in the September 2014 issue of Roofing Florida magazine.

Proper installation key to metal roofing success

Mark Zehnal

June 22, 2015

Although it’s been around for centuries, metal roofing has become increasingly popular in the last 20 years.

On Demand As AI workloads and high-density computing push traditional cooling methods to their limits, the data center industry is accelerating the adoption of next-generation HVAC technologies.

Mark Zehnal

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Proper installation key to metal roofing success

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