Their walls and roof seemed to emit a faint, phosphorescent light.
When he'd walked in that chamber, the whole roof seemed to fall on him.
The roof seemed to come down to meet him and he realized that it was only two or three feet above his head.
The roof seemed like an obvious choice - and the only one - to people on the upper floors.
The other two said that the roofs of their mouths seemed to be coated with something unpleasant.
Its roof seemed to have been removed; there was no wreckage inside the shell.
And the roof above him seemed to be itself rippling like water, but this was doubtless a reflection.
The roof is 15 years old and there don't seem to be any leaks anywhere.
We were in some vast place whereof the roof seemed almost as far off as the sky at night.
The roof seemed to be floating - a black and orange striped shoal in a white sea.