The edge of the roof was only a few feet above his eyes.

I did not plan to get close to the edge of the roof.

The boy stood now, turned, and walked to the edge of the roof.

He walked to the edge of the roof and sat down.

He had reached the edge of the roof in time to see the girl hit the ground.

For a moment he seemed to be below the edge of the roof.

I ran to the edge of the roof and looked down.

The edge of the roof is, in effect, a dead end.

"Just standing on the edge of the roof looking down at me."

The man fell back toward the edge of the roof.