English

Two super insulated houses were built according to the Canadian R-2000 construction manual, in Sendai, Japan. The purpose of the construction is to clarify how much space heating energy is saved in a mild climate, and whether there are any problems related to indoor air quality and humidity in the winter and the thermal indoor environment during the summer, compared with an ordinary frame-construction house. This paper describes the measurement results of indoor temperature, humidity and indoor air quality for the winter and summer seasons, and annual energy consumption 

As part of the energy and indoor climate survey recently carried out in Sweden (the ELIE study) a simple, inexpensive but reliable passive sampler for estimating monthly averages of relative humidity has been developed. The diffusion sampler consists of a 5 ml plastic tube prepared with lithium chloride monohydrate as trapping medium. After necessary calibration of this particular design of sampler the relative humidity can be calculated from the weight change of the sampler, the time of sampling and the average temperature during this period.