[From
here]
By now, Tenzen had to switch on his flashlight to see where he was, considering he had never visited this area before. The beam of light, though small, would be more obvious than the ninja would like, but he'd choose that over traversing these halls aimlessly. After all, there were many directions upon the second floor.
He easily spotted the railing a small distance away, which meant his current location was above the sun room.
[Unknowingly 'waiting' for Lockdown]