"Bob Hoath" writes:

We recently moved my dad's 8'x6' Hall's Greenhouse, but on re-assembly we
can't work out how the opening light hinge works. The stepped aluminium on
the upper end of the light doesn't appear to locate anywhere. Any advice
appreciated.

Usually slides into a channel along the ridge piece. You have to put
it in at the end and slide it along to the correct bay, it won't clip
in.

Anthony