Cross reference
Mark 2:4
4 And when they could not come nigh unto him for the crowd, they uncovered the roof where he was: and when they had broken it up, they let down the bed whereon the sick of the palsy lay.
Luke 5:19
19 And not finding by what `way' they might bring him in because of the multitude, they went up to the housetop, and let him down through the tiles with his couch into the midst before Jesus.
Deuteronomy 22:8
8 When thou buildest a new house, then thou shalt make a battlement for thy roof, that thou bring not blood upon thy house, if any man fall from thence.