Before you start house painting, you should decide what kind of paint you want to use. The type of paint you choose will depend on the surface you’ll be painting. Some types are more appropriate for certain surfaces than others, so you should do some research before choosing a color. If you’re going to paint walls and ceilings, you’ll need to decide what kind of primer you need. A primer is a thin layer of paint that prevents the finish from soaking into the material.