As you say, that big roof, up there like a big kite or sail. Tie downs are a great idea.
Tomorrow we get hit by Teddy and while we don't usually get the destruction seen in the south, we do get some damage. I spent today on prep work. Putting stuff away, moving the fiver to a better location, getting rid of scrap metal and burning brush. Yes I did hose it down well afterwards.
A lot of the trees on the property are older and I can expect to have some exercise for the chain saw afterwards.