Sheet metal guru – Business Tribune

“Large buildings have to breathe, and since the mass adoption of air conditioning after the Second World War, the technology hasn’t changed much: Install heaters and chillers in the basement or the on the roof, and then hundreds of yards of metal ductwork.

“Sheet metal is origami with iron,” Rachael Kofahl told me recently over a post-work tea at the Porter Hotel. “We take this flat stock and we create all these complex shapes.”

Her knees were dusty from sheetrock debris, and her eye-catching arm tattoo depicted, with nerdy precision, a series of metal fasteners (screws and bolts) used in the job…”

View the full article on the Business Tribune website.