Building a Sunroom That Stays Comfortable Year-Round
A sunroom should feel like the best room in the house, not a greenhouse you avoid after lunch. In Roswell, Marietta, and Alpharetta, west- and south-facing glass turns beautiful views into afternoon heat loads that standard HVAC was never sized to handle.
CRM builds sunrooms as part of additions and outdoor living plans. Shade and mechanical scope belong in the first conversation, not after the first hot week.
Start with how the sun hits your lot
Walk the proposed footprint at 10 AM, 2 PM, and 5 PM on a clear day. Note where direct sun lands on glass and whether mature trees will help or block views you paid for.
Afternoon sun on west glass is the hardest load to fix after construction. Roof overhangs, pergolas, and operable shades should be drawn before footings go in.
Glass, frames, and ventilation work together
Low-E coatings and good frames reduce heat gain, but they do not replace airflow. Operable windows and ceiling fans move comfort more than one more pane of glass.
If the sunroom opens to an open-concept kitchen, plan how cooking heat and sunroom heat combine on summer evenings when sliders stay open.
HVAC and insulation are part of the room
Sunrooms added without dedicated supply often steal air from the rest of the house. A mini split or extended duct run may be the right answer when the room will be used daily.
Insulate the floor assembly and tie the roof into the house envelope correctly. A room that is too hot in July is usually too cold in January for the same reasons.
Connect the sunroom to how you live outside
Many clients want a sunroom that steps down to a deck or screen porch. Plan thresholds, drainage, and traffic paths before you order furniture.
Share photos of the exterior wall, lot orientation, and how you want to use the room through our contact form. Our process maps structure, glass, and mechanical scope together.
A sunroom that stays comfortable year-round is a planning problem solved in design. Get shade, glass, and HVAC on the same page before construction starts.
Thinking about a sunroom addition?
Tell us how you want to use the space and when sun hits your back yard. We will outline realistic glass, shade, and HVAC scope.