A group of contractors working on the exterior roof of an urban development, the men wearing high visibility vests and safety equipment as they work on the elevated building, Casco Viejo, Panama City

contractor tradesman waterproofing roof working building construction commercial safety equipment florescent vest high visibility hard hat civil structures insulation layer facade front concrete rebar reinforced engineering architecture panama city casco viejo builders roofer labourer installing restoration replacement protection green netting angled steep exterior pitch outdoors urban sunny tropical day beautiful san felipe central america