two, that's distorted, a lot of homeowners choose other ceiling textures including sleek or suspended ceilings. Wonderful work! I have managed to complete four ceilings with popcorn and have a couple more to try and do. I find the four inch knife the most effective, and one particular with http://popcorn-ceiling-removal-s30022.jiliblog.com/53396491/5-simple-techniques-for-popcorn-wall-texture-removal