I have 20-25 year old aluminium double glazing (and external doors)in a 1960's semi, the glass does not appear to be turning blue, however every winter I wake up to find the windows dripping with water, and the wall paper around the windows(first 2-3 inches) growing black mold. Is this stuff safe ? (even though the windows are wiped every morning). The old brush seals have been replaced with a modern seal, to stop all the noise and wind coming in between the windows
Apart from the additional security offered by new upvc windows , child opening restriction & built in air flow. Will changing from my current windows to new UPVC ones help . I have noticed how cold the (frames and) glass feels in the morning, could this mean the gas between the glass as gone and they are not working properly