No specific make. The size the architect drew couldn't be purchased as no-one made it (!), but the builder committed to putting them in so he made some stands and got a glazier to do a window for the top.
This is the box of one of them, in construction. The glass is secured to the top.
Hi,
I have an extension near finished that has a flat roof, with a (3) flat roof window.
The roof has an angle of about 5 degrees in which the rain water runs away, but the roof windows have one of about 1 degree. The problem with this is the water stagnates and when dries leaves unsightly...