Condensation On The Outer Surface Of Window Glazings - Causes, Effect On Heat Loss And Method For Prevention

Fogging on the outside surfaces of window glazings increases if the thermal insulation of the glazing is improved, i.e. the k value is decreased as realized in heat-insulating glasses currently on the market. Common types open to risk are sky lights and glazing in the skin of buildings, e.g. structural glazing facades, because they are exposed to the largest portion of open sky. Conditions of fogging are investigated and discussed.