Roig was elected deputy on the RPR ticket for the first time in 1993, in Vaucluse's 1st constituency, having run against Jean-Pierre Roux, a dissident right-wing candidate.
[6][7] At the time of the 2002 French legislative election, Roig won a deputy's seat with 58.36% of the vote in a race against Cécile Helle and was part of the UMP group,[8] a newly created political party.
[10] On 29 November 2004, in the wake of a government shuffle after Nicolas Sarkozy's election to the UMP's presidency, she was named Minister Delegate for the Interior, alongside Dominique de Villepin, replacing Jean-François Copé.
[11] At the time of the 2007 French legislative election, Roig managed to get herself reelected deputy of Vaucluse's 1st constituency with 56.71% of the vote in a race against Michèle Fournier-Armand.
[13][14] After leaving politics, Roig lived outside the public eye in neighbouring Gard, until she was admitted to the Avignon hospital centre's longterm care unit.