I live in a 2-story home. The bottom floor is cinderblock with vinyl siding over it. I have a total of 4 windows downstairs. 2 of which are over 8 feet long. The windows are less than a year old and I have 2 brand new doors, one on the front of the house and one on the side that is covered by a car part. You have a couple choices here. The first things you can do are taking off other interior doors and nail them up over your windows. I can do that for my 2 smaller windows. If you have some 2 X 4’s or plywood around the house they will work just as well. In my yard I have 2 large rolls of chain link fence. The fence is about 8 foot tall and probably 50-60 ft. long. I fully intend to cut the fence to the length of my large windows. I will nail up the fence on the outside and the inside. My doors I will back up a car in front of the one under the carport. The front door I will put a car in front of that door as well.
Now we move upstairs. The only thing that needs secured upstairs is my backdoor. I have a brand new sliding glass door. Outside that door is a deck and beyond the deck is the mountainside. My deck has about a 4 ft. gap between the deck and the hillside. I don’t believe the undead will be able to make that jump. I however wont be taking any chances. I plan on using the left over chain link fence, doors, and plywood to create a wall on the back of the deck. I would have protection plus be able to get on the deck for water gathering, sun to grow plants, and other out door activities. The windows on the top of the house are brand new as well and too far for any warm bodied person to reach let alone the undead.
One thing that you cant do whatsoever is block yourself in. Make sure you have a way to escape. Check out the info graphic below for some ideas.