Career
Having joined Liga Veneta–Lega Nord in the early 1990s, Roccon was elected to the Regional Council of Veneto at the 1995 regional election. In the 2000 regional election LVR failed to field a list in the province of Belluno and, thus, Roccon was not re-elected. In May 2003 Roccon was elected mayor of Castellavazzo (Belluno) with 51.4% of the vote.
In April 2008 he was re-elected by a landslide with 62.7% of the vote.
Having joined The People of Freedom, he served as president of the provincial public utility until November 2011. In late 2012 Roccon took part to some events organized by Venetian Independence.
On 5 April 2013, under Roccon"s leadership, Castellavazzo was the first municipality of Veneto to approve a motion in support of a referendum on the independence of Veneto.