MODEL 400 : Insulated Sunroom

Building on our 3-Season Sunroom, the Model 400 Thermal, Insulated Sunroom by Sunspace takes you and your family to a new level of comfort while extending your enjoyment of the seasons.

Double glazed high efficiency, Low E-Argon gas Glass Windows and extrusions with commercial grade thermal breaks combine with the Sunspace Thermal Roof System to provide strong support for wind while reducing condensation and heat loss. Eliminate costly foundation work with Therma-Deck! The finished surface is perfect for carpet, tile or almost any type of flooring while providing 25% better insulated rating than conventional flooring construction.

This sunroom will provide comfort all year round, escaping the heat, insects and elements. Fill your space with your favorite décor and elevate your lifestyle while gathering friends and family.

  • Gable roof (post and beam not included)
  • Glass transoms
  • Tempered glass kick panels
  • Various Glass Options
  • Screen Options: Better Vue, 18 x 16, Solar Screen, No-See-Ums 20×20, Tuff Screen
  • Manufactured solid or open walls
  • Double side slider lift out Windows
  • Sliding glass Patio Door
  • Single slider window

Patio, porch enclosures

Room additions

Mobile home additions

Trailer additions

Free standing



Factory rooms / Offices


Storage Rooms / Utility rooms

PVC Colors

*Please note that some available options may be considered custom upgrades with an additional charge. Please consult your local Sunspace Dealer for details and pricing.