Switzerland 2014 Geneva. Roofing workers.
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Switzerland. Geneva. Two roofer workers from the company Cerutti Toitures SA are checking for leaks in the roofing felt. The control is part of a maintenance contract with the building's real estate owner. The laborers use a machine sending under the roofing felt vapor steam which comes out holes and indicates leaks to be fixed. 18.03.14 © Didier Ruef
© Didier Ruef 5616x3744 / 12.7MB