The roof is an area in the Observatory, accessed by going up the stairs next to the main entrance to the courtyard from the living area. It is an open space which is fairly high up. There is a ledge sticking out at one part of the round area from which you can seen The Scar and the Thirteen Towers. There are birds here which, like in the courtyard, will fly off upon approach, occasionally leaving common items behind.

Aeron finds Elena here at various times during the game. This is where he finds her in the best three Endings (B, A and S).