What is the point of storm door?

New homeowners are wondering: what is a storm door and do I need one? You know a storm door is an outside door, but if you’ve just moved in, there may be a chance your new home doesn’t have one, or if you’re in an older home, the storm door needs to be replaced.

Is the function of the storm door important enough to replace? A storm door is an exterior door that is installed in addition to your front doors to both protect against adverse weather conditions and ensure a constant flow of ventilation. But even beyond these basic functions, a storm door provides many more benefits than just protection from cold, rain, and light winds.