I read this or a similar formula many times on many threads. The problem I have with it is that very few suburban homes are defensible positions against any threat greater than one assailant with a gun, and that's if someone is awake. Concrete walls and steel shutters just aren't going to please one's neighbors between now and when the big trouble begins. Any suggestions/comments.
You can do a lot of internal remodeling. Such as fortifying the ceiling of the basement, designing a safe room area downstairs and stockroom. The problem with many houses today is that they will burn. If you have a brick or stone house, you need to make steel or aluminum covered panels that you can screw into your window frames and fortify any wooden doors so they won’t burn.
You will need to install a roof that won’t burn, like a steel roof. So they can’t burn you out and it will provide extra external protection.
Same thing with your garage.
Now if you have another place to bug out to, you need to pack up and get out as soon as possible.