Each type of siding will need to be treated differently when it comes to primer and paint at different price points. Exterior paint costs between $35–$80 per gallon depending on the quality you choose. It’s not always true that the more you pay for your paint, the longer-lasting your paint job will be, but you do need to be careful when researching exterior paints to make sure it can weather the local elements well.
A moisture meter will let your contractor know if there’s moisture in the stucco before starting. The wetter the material, the less ready it is to be sanded, painted, finished or covered. Your contractor will use a premixed stucco repair patch material to fill any small holes and will paint on dry days to avoid sealing in water. Painting rough stucco requires more paint. Brush painting stucco costs $112 per 100 sq. ft., roll painting costs $55 per 100 sq. ft., and spray painting stucco costs $25 per 100 sq. ft.
A single gallon of paint can run anywhere from $20 to $80 per gallon. Professionals get a contractor discount of anywhere from 25 to 50 percent. For rough siding, like stucco, you’ll need to use 10% to 20% more paint. Some textures, like wood and stucco, require extra paint because they have more surface to cover in a tiny area compared to smooth siding. Use the highest quality exterior paint your budget will allow for your project. It will look the nicest and save you money by offering better coverage and durability. Better coverage means fewer coats and fewer work hours. You’ll also go a few years longer without needing to shell out more cash for a new coat. How do you know how much paint you're paying for? Here's some helpful math: