When choosing whether to paint using an airless sprayer or paint using rollers and brushes there are many factors that come into play. Size matters: larger jobs, like a complete exterior, would take forever to paint by hand with a brush and a roller, but using a sprayer would save you both time and money on product. Small interior jobs, especially when there would be a lot of furniture and other objects to cover if you were to spray, are more suited for the traditional brush and roller. Using a sprayer indoors tends to get over-spray and paint-dust all over and requires everything in the house to be covered.
The texture of the surface can also be a vital major in the decision to use paintbrushes and rollers over a spray gun. When painting smooth surfaces, you will find that brushes and rollers will work great. However, when working on rough or uneven surfaces like stucco, a sprayer is a much better way to go. Rather than having to apply a good deal of pressure on the roller or trying hard to work all of the paint into the cracks with a paintbrush, using a spray gun ensures that the entire surface receives an even coat of paint.
If price is your main concern then the airless sprayer is your weapon of choice. Using a paintbrush and roller means that you end up using a lot more paint to paint your house, due to the fact that you apply a thicker coat of paint to cover the wall evenly. A sprayer gets a much thinner coat of paint more evenly on the surface thus saving paint that will in turn save on cost. You may need to spend a little more on masking materials, but tape and plastic are much cheaper than paint.
Overall, when it comes down to it, an airless paint sprayer’s advantages are greater than the traditional bush and roller method and will usually be the better choice for most painting projects. Not only can you get the job done much faster and cheaper, but you can apply a much more even coat of paint.