Difference Between Interior & Exterior Painting

Unknown to most of us, interior and exterior painting are two completely different sets of tasks, with equally different rules. Many typical homeowners do not know the differences between the two kinds of painting, and as such, they often end up making grave mistakes when painting their houses. It is important to know the various rules that apply when one is painting outdoors and when one is painting indoors. The good news is that your local interior Kentucky residential painting services would be able to tell these differences; however, the major problem comes in the case of those homeowners who want to do the painting job themselves.

House colors

So, don’t be deceived by the similar looks between exterior and interior paints. To begin with, exterior paints have chemical properties and traits that are quite dissimilar. For instance, these paints need to be flexible enough so as to withstand the strain due to uneven expansion and contraction as a result of temperature change. It is for this reason that exterior paints normally contain flexible pigment binding resins. Additionally, exterior paints contain a number of additives that help to stop mildew, prevent fading, and reduce tannin bleed.

On the other hand, we have interior paints, which are not only less flexible but are also formulated with additives that help make them stain/scuff resistant, easier to clean and gives them good hiding ability. Since the house interior experiences less flexion as compared to the exterior sections, interior paints tend to be lighter as well as more rigid when dry. These paints also contain less volatile organic compounds (VOCs) plus a lot less odor as people spend most of their time inside the house than outside. Therefore, with all the aforementioned details in mind, it’s very vital that you use the appropriate type of paint for both the inside and outside areas of your home.

Just as exterior and interior paints have lots of differences, they also have some few outstanding similarities. In fact, it’s these similarities that often confuse homeowners into thinking that it’s okay to use them interchangeably. One such similarity is the fact that these paints smell and look the same. You thus have to carefully look at the labeling of the paint containers if you are to tell the category it belongs to. The other option would be to ask one of the exterior Kentucky house painting services technicians or local hardware attendant for which type of paint to use for which section.


The other rather obvious difference between indoor painting and outdoor painting comes in the preparation stage. This pre-painting stage can be very long plus work-intensive just like the actual act of painting. For example, if one is painting indoors, he/she needs to cover the whole floor as well as the furniture pieces. They equally need to tape around each edge carefully. If painting outside, you also have to tape around the edges near windows, but you don’t need to worry much about the paint falling on the ground.

Lastly, weather conditions must also be considered since it takes around two to three days for fresh paint to fully dry, besides, if there’s heavy winds, some light items could get stuck on top of the fresh paint. So, before you commence on any painting project, be sure to research on the various differences between exterior and interior painting.

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