As you may already know I am doing a professional haunted house next year. We are going to be in an inside venue that has no sprinkler system to my knowledge. I know we have to have emergency exits every 50 or 25 feet, I believe, and all doorways and rooms must be at least 4 feet wide. Now thats all I know. I don't know about fireproofing, emergency lights, what we can cover the top of our haunt with. Is fireproofing a must?