Flat paint is used for many reasons; it is a more affordable version to the semi gloss, satins, and other gloss paints. It is great for coverage and absorbs into the wall with little need for second or third coats. The flat paint is also a very subtle and beautiful paint when applied to the wall.
Caring for Flat Paint
Flat paint may not be as durable or as washable as its competitors, but it is very easy to touch up. You may be considering putting flat paint in your home because it has a duller and cleaner look to it. Before you consider the flat paint, make sure it is not going in high traffic areas where the walls will need to be scrubbed often.
The bathroom, the kitchen, doors, and trim or molding are the worse places to use flat paint. You will want to consider using semi gloss paint for these areas.