I have an interior wall between kitchen and living room that I am going to remove. It runs parallel to floor joist below and perpendicular to roof joists above. There is no wall below and is approximately 18 feet in length. Initially thought it was load bearing due to direction, etc but have since removed all sheetrock and have noticed the wall sits directly above a cavity between two floor joists below with no support (except 3/4 inch subfloor) the entire lencth. There is an approximate four foot gap between the stairway wall and the beginning of this interior wall that I will be removing. The attic is not truss and has an approximate 10 foot 2 by 10 beam (double) above the gap and ties into roof joists above remainder of interior wall. Roof joists scissor over wall and have tie backs to roof rafters. I had an experienced contractor come in and look after removal of sheetrock and inspect this wall and lack of support below and he advised it is not load bearing due to fact there is literally no support below the wall. Any insight would be greatly appreciated.