Monitoring of the building envelope of a heritage house: a case study

摘要

The paper describes the long-term monitoring of the hygrothermal performance of the envelope of a heritage house located in Ottawa. The house, once the residence of two of Canada's Prime Ministers, now serves as a museum. To preserve the historicla artifacts within the buiding, the specified temperature and relative humidity (RH) for the indoor air are 21 deg C and 35/100 to 50/100, respecitivley. As the house must also be preserved, there was conern about the effect of the high indoor RH (moisture) on thedurability of the building structure. The main objective of the monitoring ws to assess the effect of the conditioned air on the building envelope. Selected wall sections and a window were continuously monitored from March 1995 to August 1996.