A plain-cardboard roller core will generally not hold up any longer than it takes to paint one room. Top-quality rollers pick up and release more paint per fill and provide more uniform coverage with less effort. Inexpensive rollers tend to mat- down, reducing the amount of paint the roller will hold and requiring more frequent fillings. The fabric covering also has much to do with the quality of a good roller cover. A fabric that mats down is no good.
Most manufacturers offer guides that suggest the best use for their roller cover.
It is important to follow these guidelines. Doing so will help ensure a good job. Finally, it s essential to know how to fill a roller and then how to properly distribute the paint on the wall. Properly filling a roller requires the use of a roller pan. Dip the roller in the paint well and roll it back and forth until it is completely covered with paint.