Most labels on exterior paint cans used to warn homeowners that they shouldn’t paint in temperatures below 35 degrees. Hirshfield’s manufactures paint right here in Minneapolis. The maximum and minimum recommended temperatures for exterior paint vary depending on the type (oil or latex) and specific brand of paint used, but a general rule of thumb is that oil-based paint can be applied when the temperatures are between 40°- 90° F and latex between 50°- 85° F. The best drying will occur when the relative humidity is 40% to 70%. Cold paint has poor flow properties and tends to sag because it goes on too thick. Most paint brands and professional painters advise painting in temperatures below 100 degrees Fahrenheit. Paint gets thick when cold and thin when hot. The best temperature range for painting outdoors with latex paint is from 50° to 85° F. Painting during hot weather can cause latex paint to dry too fast, resulting in brush marks and clumps of paint on the paintbrush. For latex-based paints, it’s 50 to 85 degrees. (Not to mention the fact that it’s not a great idea for anyone to be out painting in the extreme heat, under the blazing sun.) Leggari Products 897,707 views If it's too hot outside, then you can always start prepping the interior for a repaint. With too hot of a surface, the paint never gets a chance to adhere and possibly leaving you with a cracked, peeled, or blistered exterior (below). When is It Too Cold to Paint Outside? When applying the paint in summer conditions, paint should ideally be applied when the temperatures are above 50 degrees and below 90 degrees. This can cause streaks, fading, or poor adhesion to the surface. However, if you decide to use oil-based paint, their ideal range is slightly broader — 40° to 90° Fahrenheit. Find out the ideal painting temperature for exterior painting from the pros at Paintzen.. On the other hand, temperatures that are too hot will cause paint to dry. Protection is one of the main benefits of painting your home. Paint, like other materials, reacts to changes in temperatures, even if you are painting inside your temperature-controlled house. Painting During the Summer – How Hot is TOO Hot? However surface temps can be much different than the ambient thermometer you may see, staring at the mercury. First came “low temperature” products that can be applied down to 35 degrees Fahrenheit. Can it also get too hot for exterior painting? Let the paint dry overnight; the temperature should not drop below 35 degrees during the night. On the other hand, temperatures that are too hot will cause the paint to dry prematurely. These are the homes that need repainting the most often. Common Spray Painting Issues During Cold Weather. Lower temperatures are a serious concern and you should not paint or use body filler below about 60f ever. The ideal level of humidity when painting is 50% humidity. Give your product a good 24 hours to get acclimated to room temperatures … Paint left in a car trunk and allowed to get hot or cold (depending on the time of year) must be brought back to 70°F-77°F (20-25°C) before it is used. As soon as you get home- if a box was left for you outside on a porch or garage…get it in to room temperatures ASAP. But Midwesterners know that temperature isn’t everything when it comes to working conditions! Paint technology has evolved in recent years to the point where the painting window has enlarged considerably. Too hot, and the paint dries even before it touches the surface. The usual recommended temperature range for latex paints, the type used most often, is 50° F to 90° F, says Rico de Paz, our paint expert. High temperatures are a big concern while applying the stain. In terms of outside air temperature, ideally the temperature should be in the suggested range for 48 hours after application otherwise the paint film may not form properly. Not only do you have to avoid the extreme heat and humidity, but the rain as well. Generally speaking it is not too hot to paint up to and even above the century mark. The wall temperature can vary from the weather temperature and must be above 10°C and below 35°C throughout the painting process. If you want to know the best time to paint the exterior of your house, keep reading. How warm is too warm to paint my house? Coastal homes endure the most damaging environment, combining salt, wind, sand, and sun. Humidity is how we measure the amount of water vapor in the air, and of course, this affects how paint dries. Like the old saying, “The only thing that’s certain is death and taxes and summer heat.” Okay, maybe that’s not exactly the saying, but it definitely gets hot in the summer, and summer is a time when many people want to paint the exterior of their homes.. The optimal temperature for exterior painting always depends on the type of paint you’re using. 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