condensation on windows

Hello again hsgl,

An "over-sealed" house has nothing to do with condensation on the window; I assume there is a faulty glazing; the glazing rebate was probably not sealed sufficiently. Have you already conducted this temperature measurement?

hello, the measurements were taken with the shutter open; outside air -10C, glass -5C inside air +20C, glass +16C and with the shutter closed; outside air -4C, glass 0C inside air +20C, glass +18C the measurements were taken in the same room and at one window on the same side. this with an indoor humidity in the room (34m2) of 50-58. where the shutter was down, the panes are not wet. the glazing as well as the glazing rebate were in top condition and sealed (was inspected and assessed by the glass and window company). best regards hsgl