No abstract

In this study, we investigated a fenestration system that divides the roller blinds into multiple layers, closes partially to ensure privacy, and opens the other areas to achieve both view, daylighting and solar heat gain. In the experiment in the controlled space, subjects evaluated "visibility from inside", "estimated visibility from outside" and "openness", and in addition to that, subjects also evaluated "view", "brightness" and "total satisfaction" in the experiment in the actual environment. As a result, we confirmed the visual satisfaction improved by this system.

No abstract

A web-based questionnaire survey on residents' awareness of environmental adjustment behaviors among residents of houses in dense areas are conducted. The results show that environmental control behaviors aren't effectively utilized on the first floor of detached houses due to concerns about security and privacy. In contrast, about 65% of detached houses built in dense areas have living rooms on the second or third floor as a way to secure sunlight and openness. Also, there is less concern about security in multi-family dwellings. This suggests the interest and potential of residents' environmental adjustment behaviors to make the thermal environment more comfortable.

Targeting residents of detached houses, a web-based survey was conducted to determine residents' awareness on windows and window treatments and its changes in their environmental adjustment behavior, based on the information provision. Estimate of "openness" in terms of daylighting and solar heat gain for overall satisfaction was 0.68, indicating significant contribution. On the other hand, it also became clear that it is important to properly close window treatments for privacy and solar shading. It was also found that providing information such as opening and closing window treatments on the interior side promotes environmental adjustment behavior for 70-80% of residents.