As a general rule, the average gallon of exterior paint covers 300 to 400 square feet of surface area. That means you'll need 8 to 10 gallons to paint the exterior siding of a 2,500 square-foot home (one layer). We always recommend applying at least two coats for any external color change. While many homeowners think primarily about siding when considering exterior painting, this project often includes many other aspects.
Painting the exterior of a house involves painting many outdoor elements to create an aesthetically pleasing appearance throughout the exterior of the house. The following table highlights the items you can paint outdoors and the costs associated with each project. There are many factors that influence how often you should paint the outside of your home. It depends on the type of coating you have, the climate in which you live and the quality of the paint.
The average homeowner will have five to ten years between painting jobs, but unique surfaces require a different amount of time between painting jobs. Wood siding should be repainted every three to seven years, while aluminum and stucco can last between five and six. On the other hand, newer materials, such as fiber-cement board, can go ten to fifteen years without painting. Many professional painters use paint sprayers to quickly and efficiently cover the outside of the house.
I am not a professional painter, but I have used a sprayer several times to paint other houses while doing electrical work and I plan to use one to paint my house. Most houses with more than one floor are more expensive to paint than the same surface in a single-story house. On average, it can take three to four days to paint an average 2,500 square foot house with a team of two or three painters.