The windows manufactured by UAB "Drūtas" use high-quality "ROTO" hardware, which does not require much maintenance, but at least once a year, the latches must be lubricated using machine oil or an acid-free lubricant.
Why do window panes fog up from the outside?
This happens when the glass surface temperature is lower than the ambient air temperature and the relative humidity is quite high.
Why do window panes fog up from the outside?
The main reason is high humidity and poor ventilation in the rooms.