Tickets go on general sale on Tuesday afternoon for the All-Ireland semi-final clash, which is part of a double-header with the Tailteann Cup final between Down and Laois
Goals in either half from Clann Éireann clubmates Barry McCambridge and Conor Turbitt saw Armagh into the last four while Roscommon lost midfielder Ruaidhrí Fallon to a second booking in the first half
The Orchard County are bidding to reach the last four for the first time since 2005 at the expense of the Rossies who were last in the semi-finals back in 1991