The Rooftop is an area of J's Bar featured in Resident Evil Outbreak File #1 and File #2
The rooftop is a large open area at the top of J'S bar the hole area is sealed off by fences the storage room is located on this rooftop also this area leads to the rooftop apartment area.
The "Vinyl Sheet" SP item can be found here. Once the player reaches this area they must get to the broken fence opposite the storage room and break it down using melee attacks or gunshots once the fence has broke down a cutscene will play once the cutscene is over the player must then climb onto the ledge where they broke the fence and run across the ledge jump a gap at the end and proceed into the apartments.
An iron pipe can also be found in this area.