s.ky blue information

The Solar Decathlon is a project of the U.S. Department of Energy (DOE) in partnership with DOE's National Renewable Energy Laboratory.

Comfort Zone

Comfort Zone: 64.889 out of 100 possible points


Teams design their houses to maintain steady, uniform indoor environmental conditions. Full points are awarded for maintaining narrow temperature and relative humidity ranges inside.

For full points, the team houses must maintain:

  • Temperature in the range of 72°F (22.2°C) to 76°F (24.4°C)
  • Relative humidity between 40% and 55%.

s.ky blue comfort zone

The use of radiant heating throughout produces a high level of comfort throughout the house, including the bathroom area, which has been designed to be barrier-free. The use of an energy recovery ventilation system and use of no-VOC paints, sealants, finishes, and adhesives offers increased indoor air quality. To limit the noise typically associated with mechanical equipment and appliances, all mechanical areas are zoned away from the internal environment and sealed with highly insulated wall systems. For mechanical devices within the house, sound absorptive materials are used to deaden the sound to achieve decibel levels well below 48dB.