The houses are built of clay with (generally) flat roofs impervious to fire.
He could see the clear starry sky between the dark roofs of two penthouses.
Moonlight spilled over triangular roofs into grassy front yards.
The roofs are laid out as gardens and preserved for the exclusive use of the women.
Simple roofs in general use with a double slope are the " coupled rafter roofs," the rafters meeting at the highest point upon a horizontal ridge-piece which stiffens the framework and gives a level ridge-line.