Please go back and check on how HFH's homes have done in these kinds of situations before you give them a black eye for construction methods. When you look at the pictures from the lower 9th Ward where the levee broke twice, you'll see some big white painted houses. The've been flooded twice now by water pouring through the breaches, but they're still standing. Those are the HFH homes. The ones that didn't suffer anything but water damage and will probably be completely repairable. In previous hurricanes, whole neighboorhoods have been reduced to rubble except for the homes built by HFH. Why? Because the people care about what they're doing and put them together right. They use enough nails on the hurricane straps, and enough everywhere else so that the whole house doesn't fall down from a little gust of wind. 2x4 wood is fine. As long as you connect it right.