"He smashed a window to get out on to the awnings and we've kicked in the bathroom door to get to him," Mr Clinton said.
"We followed him out the window and basically chased him around here where he could go no further, and apprehended him."
The man lay on his stomach and was handcuffed by two officers, before a fire engine arrived to safely lift him off the roof with the ladder.
Mr Clinton said the man was arrested and charges were likely to follow.
Crowds of people had gathered to watch the chase.
Rotten Apple Backpackers owner Jason Heard said his clients were unperturbed.
"They thought it was quite entertaining. It was just so instantaneous," he said.