Do You Paint Trim First Or Walls First. Walls are primarily rolled, while the trim is exclusively brushed and can look bad if someone slops the paint on, muddling the details, and leaving permanent brush strokes. Usually, the walls will be flat or satin finish, but as a general rule, start from the top of a wall or trim piece, and work your way down.
Certain people carefully paint the trim and then do the walls, figuring the painter's tape will protect most of their handy work and if not they can touch it up later on. Plan to 'dominate' onto the surface not painted by about 1/16; Most of the painters i work with prefer to paint the walls after we have completed the flooring.
Do you first paint exterior walls or trim?
If you paint the walls first, you are bound to ding it somewhere, and everywhere you do. Certain people carefully paint the trim and then do the walls, figuring the painter's tape will protect most of their handy work and if not they can touch it up later on. This will allow the ceiling paint to run under the tape and fill the voids making a super crisp tape line when you paint the walls. Ceilings by the way and then if you need to add something, like do the trim work or add any accent painting, then you can.