Here’s a brief recap of what went on with the ceiling and wall insulation. The next step is the floor, which has been primed and is ready for rigid insulation. If you click the link to the previous video, you can hear how much echo there used to be. The insulation that I am using doubles as a sound absorbing material, so the bus should be a bit quieter on the road. I can hear a big difference when I go from outside to inside the bus. In this video, the doors and a few windows are open, so you can still hear some birds. With everything closed up, it’s very quiet.