4-Season Sunroom:
A 4-Season Sunroom is designed to be functional year-round, with glass windows, insulated frames, and a solid roof. However, depending on materials and contstruction, some 4-season sunrooms may not be as energy-efficient or comfortable in extreme temperatures as advertised.
3-Season
A 3-Season Sunroom uses single pane glass, vinyl, or screened windows and doors to enclose your outdoor space. While not engineered for long-term heating or cooling, these rooms are perfect for enjoying spring, summer, and fall – and in milder climates, they can even be used during the winter.