My perentie door tops appear to be aluminium and are painted with heavy black paint inside.
The lower frame however is steel, and showing some water ingress.
I don't plan to be drowning mine, so letting water back is is less of a problem, but I can see how it may happen regardless.
I need to do some thinking/3D printing/laser cutting and come up with something that works.
also need to look up part number for door top bolts.

