Storm doors serve multiple purposes on Louisville homes, more so than what many people believe they do. While some of these purposes may benefit you, it is always best to ask a professional if a storm door would work for your home before purchasing one.Storm Doors Conserve EnergyStorm doors create an additional barrier between the outside of your Louisville home and the inside. This additional barrier helps your entry door in keeping the heated air in your home where you want it to be and the cold air out of your home. In other words, it makes your home more energy efficient.Because your storm door is on the outside of your entry door, it also keeps the snow and ice off the entry door. With the snow and ice against the storm door instead of the entry door, it keeps the entry door warmer and allows it to be a better barrier in keeping the cold air out.Storm Doors Protect the Entry DoorA storm door not only prevents snow and ice from getting to the entry door, it also protects it from many other things. A storm door protects the entry door from rain, wind, sleet, and many of the other weather elements that can weather a door and require it to be repainted or even replaced.A storm door with a lock can protect your entry door and even you from intruders. By locking your storm door, the intruder not only has to get through that lock or the thick glass in the storm door, they also have to get through your entry door.For many intruders this is just too much work and they won’t bother. For ones that will bother, if they end up having to break through the glass to get past it, they have just drawn either your attention or your neighbors attention to themselves before they even get to the entry door to get in your Louisville home.Storm Doors Allow Light in Without Heat LossOn those days near the end of the winter when the spring is trying to make its appearance by warming up the weather, it is nice to be able to open up the house a little. You may not be able to open the windows and let the fresh air in for very long because there is still a chill in the air, but you can at least let the sunlight in for the day.This is where having a storm door is great. You can open the front entry door and let the sunlight come through the storm door without letting the cooler air outside come in as well. You will also be able to keep the warmer interior air in your home better with a storm door than you would be able to if you just had a screen door.