Pilkington ActivTM : self-cleaning glass for roof glazing and roof windows Solara 

These double-glazing units from Pilkington concern (with which we cooperate on a long-term basis), are aimed at hard-to-reach windows, where an everyday dirt may cumulate. Aktiv is a  colourless outer Dual Action layer applied on float glass. Dual Action ensures two types of effects: 1) organic dirt decomposes in daylight, 2) rainwater runs off the glass in an even layer (not in drops) and washes off the released dirt.

Aktiv layer can be combined with other glass types in a double-glazing units, e.g. to enhance security, to reduce the noise level or to achieve better insulating characteristics.