When Can We Start Painting Our Exterior?

Spring has officially arrived, and the phone is ringing with requests for exterior painting. Actually, we have been getting those calls for a while and I am just now setting up appointments to look at them. Here in Indianapolis, our exterior house painting season is somewhat flexible from the standpoint of when we can do the work, but there are some general guidelines I like to establish so that our customers understand why I have cutoff dates in place. Temperature There are several factors I need to weigh when considering the optimal months for residential house painting in the Indianapolis area. The first, not surprisingly, is temperature. The overnight temperature is more important than the daytime, because although we can apply paint when it is 50 degrees, if the temperature drops to freezing overnight, a latex paint product will not adhere properly and will fail in a short amount of time. Additionally,heat and humidity in the warmest months can be tricky with regard to proper drying times and can make for adhesion problems in the future. The following graph shows average temperatures in Indianapolis.   Daylight Hours        As obvious as it may sound, the amount of daylight we get in Indianapolis is a factor in our ability to paint a home exterior.  In March, April, October and November, we really cannot begin before 9 am, even though the sun may be up.  Why?  There is typically some dew on the surface of the home as a result of the temperature differential from the previous evening.  Painting over a moist surface is a recipe for disaster, as the paint...