Have you ever thought about what you are going to do if an army of thousand zombies attack your house? How are you going to safeguard your house and your family from these undead dead monsters?
Well, for starters, you can black out he windows with heavy black tapestry so that no light escapes that would attract the zombies to your house in the first place. You can also think about install 3/4 inch steel plates on all your door and windows so that entry into your abode is made as difficult for them as possible.
Install floodlights that will be switched on and light up every corner of the outside of the house in case of the attack and allows you to see which direction exactly the attack is coming from.