Another method my wife and I came up with for Ivan:
Rigid foam inserts for the windows. Either styrofoam or other stiff "shipping" type closed cell foam (1-2" thick) cut to the shape of the window and wedged tightly in the window frame. We had 130 mph winds that took out 15 trees in our yard but the foam in the windows didn't budge........
That is a great idea. We had to evacuate, and when we returned, the dining window's plywood was bowed. Something struck it very hard.
Our neighbor had six trees drop onto his house, pool, cabana, and was just disgusted.
Trees. Can't cut them all down though. 130 mph would tear this place up completely. ~sigh~
I've always wanted to design a modern house.