Abstract
This report is the results of observations of the temperature and the relative humidity at the inner part of wall panels in summer, and is following the previous report i. e. those of winter. The method and the objects of observations which were taken this time are same as in winter. The results of observations are as follows; 1) In summer, the relative humidity and the temperature of the inner part of walls are higher than in winter as was expected, and the absorption and radiation of moisture by materials of wall inside are more clearly observed. 2) The influence of the relative humidity of outdoor to that of wall inside is very little as far as the observations of a week or so. 3) By these reason, the relative humidity of wall inside tends to be kept constant. And if it is kept in high degree, the deterioration of materials will be accelerated. Inspecting the wall inside by a fiberscope, rusting of the welded part of LGS was observed at the part relative humidity was comparatively high, though it had passed only 3 years since the completion.
