By raft in attic, I meant something basic. A surfboard would do the trick for survival purposes. Some folks in Katrina flooding would have found such a tool to be valuable. There were quite a few people sitting on their roofs. I know of some people dying in Katrina because they went to their attics, water consumed their homes, and they didn't have proper tools to break through the roof. I understand how that could happen to an elderly person or someone with limited physical abilities. A raft or surfboard in the attic seems to have a high benefit/cost ratio.