Ideally, late spring and summer are the best seasons for painting the exterior of your house. This is because paint cures at a moderate rate with precipitation are low and the temperature is warm. However, modern painting technology and improved paint quality can let you paint the exterior of your home even when it’s 38 degrees outside. According to many paint experts, fall is the best season for exterior painting because the difference between high and low temperature is less than in other seasons.
The problem in Applying Paint When it’s Cold Outside:
Usually, it should be at least 50 degrees when applying the paint and the temperature should not drop below 32 degrees at night for several days. This is because the paint needs many days to cure and since the temperature dips, it can cause the formation of dew on the surfaces. As a result, the water in the paint starts to evaporate too slowly. Even if you get a warm day, the paint won’t get proper time to create a good film if the temperature drops too low at night.
Use Paint That Will Cure in Low Temperature:
The colder temperature and moisture on the surface may also result in staining or mildew. To avoid this situation, you should use paint that cures even at low temperature. There are many different manufacturers that now claim that their paints will cure in temperatures as low as 35 degrees. However, you still have to keep an eye on the quick temperature fall at night. Before you apply paint in the exterior of your home, when it’s 38 degrees outside, you should check the label on the paint can for instructions on temperature ranges.
Understand Temperature’s Impact on Paint:
When you want to paint the exterior of your house with 38 degrees temperature outside, you need to understand how low temperatures can affect paint application and how they change the drying pattern. Understanding this will help you to prepare for painting in the cold. When you want to paint in cold weather, or even at freezing temperatures, some paints will become very thick or semisolid. This type of paint requires excessive thinning. On the other hand, latex paint can become frozen in slower evaporate rates, which requires proper additives to make it freeze resistance.