How to Check Presence of Dew on Windows
Abstract
The issue of external water condensation on well-insulated windows in cold cli- mates has been studied with a new, unique experimental test facility in Uppsala, Sweden. The characteristics of the outer surface of the window affects the occur- rence, amount and type of external water condensation. Specifically, it influences how good the visibility is through the water layer. In this article, measurements with this new equipment of the occurrence of dew on glass samples with different coatings are presented and discussed. These initial results both show that the test facility gives reliable results and give an indication of what surfaces can be used to prevent either dew from occurring or the view through the window from being distorted by dew.