A screened porch, also known as a screen room, is a type of porch or similar structure on or near the exterior of a house that has been covered by window screens in order to hinder insects, debris, and other undesirable objects from entering the area inside the screen. Typically created to enhance the livability of a structure that would otherwise be exposed to the annoyances of the outdoors, screened porches often permit residents to enjoy an indoor environment outdoors.