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If you’re deciding between limewash versus whitewash, know that both have a chalky matte appearance. Limewash is made from lime, water, and sometimes pigment, while whitewash consists of lime, water, white chalk, and binders (though you can get a similar look with watered-down white paint). Whitewash has fewer options for color customization, and it sits on surfaces instead of being absorbed into them, which can trap moisture. Whitewashing costs less—about $1.40 to $4.20 per square foot.

How long limewash will last depends on the quality of the application and the porosity of the surface. For example, a limewash on brick will last five to seven years. If it's a home exterior application, exposure to specific weather conditions is also a factor. Limewash tends to develop a patina over time, and its natural look masks damage and imperfections well.

Limewash and whitewash often appear together in a quick search when looking for ways to paint brick—so, what’s the difference? Limewash paint is one of the most natural and environmentally friendly ways to paint brick. It’s made from limestone and water, giving it an off-white appearance that looks similar to whitewash. However, limewash is semi-permanent, whereas whitewash is a more permanent, watered-down version of existing paint. 

Both brick paint options are economical and light in color, but if you want to change the appearance of your home’s brick in the future, then limewash might be a better option.

No, you can't apply limewash with a roller and expect good results. Limewash is as much a technique as it is a type of paint, and a freehand application with a brush is part of that technique. Hand brushing a large area can be tiring, but limewash goes on easily and only requires thin coats to be effective.