The Perfect Weather For Painting

Even if there’s no rain in the forecast, painting under conditions in which temperatures or humidity are too extreme can mean all your hard work could wind up being for naught.


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Even if there’s no rain in the forecast, painting under conditions in which temperatures or humidity are too extreme can mean all your hard work could wind up being for naught.
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The Perfect Weather For Painting

Even if there’s no rain in the forecast, painting under conditions in which temperatures or humidity are too extreme can mean all your hard work could wind up being for naught.

The Perfect Weather For Painting

By Steve A. Parker

If you have an outdoor painting project on your to-do list, you might be watching the weather report to determine the ideal day to get it done. Yet if all you’re watching for is a day without rain, you’re not paying close enough attention to the weather report. That’s because temperature and humidity can have significant effects on paint as it’s drying, and none of them are good.

Even if there’s no rain in the forecast, painting under conditions in which temperatures and/or humidity are too extreme can mean all your hard work could wind up being for naught. With the average house painting project costing about $3,000, that’s an expensive failure. If it’s a commercial or industrial project, you likely can multiply that sum several times over, depending on the scope of the project.

Whether the paint is oil-based, latex or acrylic, it is a liquid. That means moisture must be able to evaporate out of it at the proper rate in order for it to dry properly. Temperature and humidity can wreak havoc on this process for various reasons, which results in more than just having to wait longer for it to dry. Paint that dries too slowly or even too quickly won’t adhere as well to the surface, with the result being ugly imperfections and premature flaking or peeling.

Because the moisture level in paint is so important to drying properly, humidity can upset the balance and ruin a day’s work. Most importantly, high humidity can re-introduce moisture into the paint as it dries, lengthening the amount of time it takes for the paint to dry and increasing the risk of imperfections. Additionally, excess moisture in the air can be absorbed into wood surfaces and hurt the paint’s ability to adhere to them. Humidity also has the potential to cause compounds in the paint to be leached out of it, creating patches of discoloration.

Take a look at the infographic below to help you decide the right time to tackle your next painting project:

paintingSteve A. Parker is Director of Communications at Raider Painting, a California-based commercial and industrial painting company. It is committed to providing solutions that enhance and prolong the life of your workspaces and equipment.

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