All-season sunrooms
A real room for every month of the year.
Built with conventional residential construction, expansive insulated glass, and an envelope designed for heating and cooling—not a lightweight panel kit.
How it is built
What is behind the finished room.
Every project is adapted to the existing home. This section shows the typical Mattison assembly so homeowners can compare real construction—not just finished pictures.
Comfort & energy
Comfort starts with the whole envelope.
Glass matters, but the roof, walls, floor or foundation, air sealing, and mechanical system must work together. Mattison plans those layers as one assembly.
Simonton 5500 Series
Mattison uses Simonton 5500 Series windows and glass packages. Simonton offers insulated glass, ProSolar Low-E, argon, and configuration-specific options; the exact package and ratings are documented for each project.
Continuous air and water control
Flanged windows, butyl-compatible flashing, sealed transitions, and properly integrated exterior trim help stop drafts and manage water.
Insulated structure
Roof, wall, and floor or foundation insulation are selected around the design. Spray foam may be used where it improves continuity and controls air leakage.
Right-sized conditioning
The room’s glass area, orientation, volume, and connection to the home are considered when planning heating and cooling.
Published R-values, U-factors, solar-heat-gain ratings, and energy-code requirements vary by the selected Simonton glass package, glass area, framing depth, jurisdiction, and final design. Your proposal identifies the actual assemblies and available manufacturer ratings for your project.
Built around your house
See the construction before you commit.
We prepare drawings and a detailed contract before a deposit is due.