Adjusting till & turn windows Post questions and find answers on glazing, double glazing, upvc glazing, conservatory glazing, fixtures and fittings etc....

[Vinnie]

I ve been told that UPVC til & turn windows drop after a period of time, I know this may be astupid question but how do you adjust them? I ve found where the allan key goes but should the window be open or closed when you try to adjust them?