Your sunroom should be oriented so the glass faces as close to true south as possible.
This design shows a sunspace in both winter and summer.
Designing for good ventilation is key to making a sunroom addition comfortable year-round.
PHOTO: GETTY IMAGES/ROB MELNYCHUK
Deciduous trees outside a sunroom can block light and heat in summer, and let them in during winter.
Thermal mass helps absorb heat and reduce temperature swings in your sunroom.
The heavy tile flooring in this sunroom will absorb heat during the day and release it at night.