Comparison of indoor environmental design standards for underground and aboveground civil buildings

Compares the indoor environmental design standards for underground and aboveground civil buildings due to the characteristic indoor environment conditions of underground civil buildings. The results show that the indoor environmental design standards of underground civil buildings need to be further improved. There are currently no regulations on temperature difference limits between inside surfaces of underground building envelopes and indoor air. Climatic zones also should be developed for underground civil buildings. Similarities and differences exist between underground and aboveground building environmental design standards. Minimum outdoor air rate and maximum indoor noise level are similar, while the design values of indoor air temperature, air velocity, relative humidity and illuminance are different.