In some extreme cases, fog or high humidity has resulted in the paint melting completely away. A good rain after six hours will do less harm than painting in high humidity, as the moisture will slow or even prevent proper curing. More importantly, you should pay attention to humidity levels. Oil-based paints take the longest time to cure, while latex and acrylic both dry quickly.
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Most exterior latex paints require 4-6 hours to dry, but 24 hours is the ideal amount of time to properly cure.Ī good rule of thumb is to paint your home at a time when you expect to have no rain for at least 12 hours, preferably a full day. CuringĮxterior paint requires time to thoroughly dry, and a dry surface doesn’t always mean the paint has finished curing. This means you may estimate the sunny side of your home to need to be repainted in three to five years for a dark paint, and five to seven years for a light paint if the sheltered side has a lifespan of ten years.
Darker colors tend to absorb more sunlight, causing them to fade faster. The color you choose will actually have a major affect on how well the paint holds up over time.
Of those factors which you have control, preparation and curing time are the two most vital factors and should never be neglected. Some of these are more avoidable than others. There are several factors which can reduce the lifespan of an exterior paint job. The following factors should all be considered when preparing to paint your home, and may help you with a more accurate estimate for your project’s lifespan. These estimates are difficult to apply universally, as climate, the material being painted, brand of paint, and the quality of the job itself can all affect how soon you will need to repaint. On the most basic level, properly applied exterior acrylic paint will last 5-10 years, with latex and oil-based paints lasting slightly less. Getting a proper estimate for your own home requires the consideration of numerous variables, many of which you have little or no control over.
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In some cases, a professional painter may guarantee as little as two years, while some companies boast 100 years or longer. There is a lot of confusion regarding the lifespan of exterior paint jobs.
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