Observational UPVC window Edgbaston
For a secondary school in Edgbaston we have installed an observational UPVC window. So this window does not let in light from outside, but gives people the chance to see what is happening in the class room.
We had to cut a hole into the partition wall and strengthen the edges, so they were able to carry the weight of the window. Then install the window. It is a non-opening window, so there are no hinges.