Back in the 70's, I had a neighbor, an elderly gentleman, who grew up on the Mississippi. He said his, and his sister's house, would float, along with several of their farm structures. They would utilize cork oak logs for flotation. They would guy wire their structures so they stayed in place during the seasonal floods. He said on one flood his sister called him on the radio, saying she was afraid her house was going to roll off the logs. Her house was upstream of his, so he had no way to get to her, so he told her to Pray.
So.... WHAT HAPPENED?!?