Sound Deadener

I should mention that I used the reto sound on the ceiling because its more like a foam mat and its super light compared to the Butyl, I was worried about the Butyl sticking to the ceiling because I played hell getting to stick to the inside of the doors, the retro sound stuck great and if I had to do it again I would use that on the inside of the doors and the ceiling and the Butyl stuff on floors and any other flat lying area.