'Flat' in the Bible

“When you build a new house, you shall make a railing (parapet) around your [flat] roof, so that you do not bring the guilt of [innocent] blood on your house if someone falls from it.

When Gideon arrived, there was a man telling a dream to his friend. And he said, “Listen carefully, I had a dream: there was a loaf of barley bread tumbling into the camp of Midian, and it came to the tent and struck it so that it fell, and turned it upside down so that the tent lay flat.”

It is better to live in a corner of the housetop [on the flat roof, exposed to the weather]Than in a house shared with a quarrelsome (contentious) woman.

(and behold, a [round, flat] lead cover was lifted up); and there sat a woman inside the ephah.”

“Therefore, salt is good; but if salt has become tasteless, with what will it be seasoned?