Outdoor & Patio

Sunroom

A sunroom is a glass-enclosed room attached to a house, designed to admit abundant natural light while providing protection from the weather. Also known as a solarium, conservatory, or Florida room depending on the region and construction type, the sunroom concept evolved from the orangeries and conservatories of 17th-century European estates, where glass structures were built to protect citrus trees and exotic plants during cold winters. The Victorian era saw the conservatory become a fashionable addition to middle-class homes, used for entertaining, growing plants, and enjoying natural light. In modern residential design, sunrooms serve as versatile transitional spaces between the fully conditioned interior and the outdoors. They are used as sitting rooms, breakfast nooks, plant rooms, home offices, and playrooms, offering the psychological benefits of natural light and garden views while remaining comfortable in all weather conditions. Sunroom construction ranges from three-season rooms with single-pane glass and no climate control to fully insulated, four-season rooms with double-pane low-E glass, heating, and air conditioning that function as true year-round living spaces. The choice between these options depends on the local climate, intended use, and budget.

Key Characteristics

  • Glass-enclosed room admitting maximum natural light
  • Attached to the main house structure
  • Provides weather protection with outdoor views
  • Available in three-season and four-season configurations
  • Features large windows or glass walls on multiple sides
  • Serves as a transitional indoor-outdoor living space

Types & Variations

Three-season sunroom with single-pane glass
Four-season insulated sunroom with climate control
Conservatory with glass roof and ornate framing
Lean-to sunroom with shed roof against house wall
Gable-roof sunroom with cathedral ceiling

Common Materials

Aluminum framingVinyl framingWood framingInsulated glass panelsPolycarbonate roof panelsConcrete slab or pier foundation

Placement & Usage Tips

Orient the sunroom toward the south or southeast for maximum passive solar gain in northern climates. Consider existing roof lines and how the sunroom addition will integrate architecturally with the main house. Provide adequate ventilation with operable windows and a ceiling fan to prevent overheating in summer. Ensure the flooring can handle potential condensation and humidity.

💡 Pro Tip

Invest in low-E glass with a solar heat gain coefficient appropriate for your climate. In northern regions, specify a higher SHGC to capture winter solar warmth. In southern climates, choose a lower SHGC to reject summer heat. This single decision affects both comfort and energy costs more than any other sunroom specification.