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Sunroom Comparison Chart

We have complied a comparison chart for 3 & 4 season sunrooms, in hopes that it will provide clarity on the differences for each sunroom type and make your decison easier on what sunroom works best for you.

4 Season Sunroom

All Year Round Use

95% of sunrooms built are 4 season.

R-30 Insulation

Thermally Improved High Strength Aluminum Structure
Insulated Vinyl Windows & Posts

Unique Contoured Exterior Design
Non-directional – Slide Either Direction
SeaClear Full Screen – Pops out (easy cleaning/max air flow)
Double-pane Glass – Argon Gas Filled
Low-e Coating – Reduces approx.75% Ultraviolet Light
Reduces Flooring & Fabric Sun Damage
Tempered Safety Glass
Ultra Warm Edge Spacer
Energy Star^TM Rated Windows
Smart-ER Foam Filled Frames
Sashes Lift Out for Cleaning or Full Screen
Added Strength & Insulation

R-26 or R-40 (optional R-13)
Styles – Gable/A-Frame or Studio/Slanted
Up to an 8/12 pitch (3/12 min for shingles)

Heating/Cooling/Heat Pump Unit or Any Option

Labor (approx equal to 3-Season)
Materials about 15% More
Optional Heating & Cooling Equipment (Recommended)

3 Season Sunroom

Use is normally limited to March-November. Depends on room facing direction for sun and portable heating device output.

5% of sunrooms built are 3 season.

Uninsulated or R-30 (Recommended)

Aluminum Structure
Aluminum Sashes & Frames

Directional – Left Only or Right Only
Half Screen – Slides
Single-pane Glass – No Gas
No low-e Coating for Ultraviolet Light
Use Flooring & Fabrics Designed for Full Sun
Tempered Safety Glass

Other Options in the 3-Season Marketplace:

Four Track or Sliding Plastic Windows
Double-Pane Glass (aluminum sash/frame)

R-13 (optional R-26 or R-40)
Styles – Gable/A-Frame or Studio/Slanted
Up to an 8/12 pitch (3/12 min for shingles)

Portable Space Heaters

Labor (approx. equal to 4-Season)
Materials about 15% Less
Optional Portable Space Heater