Things take a while when you are self building don't they?
So, back to this circular rooflight internal finishes joinery. I thought you'd all like an update, particularly @Onoff who I was expecting on site back in November ?
Here is what has been done.
Firstly, there was a slight thermal bridging issue with the metal frame for the roof light being inside the thermal envelope. Got some drips earlier in the year when plaster was drying out and condensing up there. Not a huge amount we could do easily but I have at least stuck some aerogel (left over and lying around) on those areas. Those are the silver triangle pieces. Hopefully there will be less moisture (than plaster drying out) when we are living in it.
Back in Jan the tackers said they would have no problem with that rooflight meaning that HWMBO was left with stud wall construction only. And this week was the week for them to do it.
They turned up with a flexi 6mm board (that they also said was moisture resistant). They used some plasterboard to batten out slightly from the square bits of the hexagon, some 25mm battens a little bit further out and then some creative battening across the corners and then they bent the 6mm board into shape and fixed it.
Today they did the top bit (no photo, too dark when I got home). But they have left the plasterboard about half an inch short of the glass and made sure that the black edge is covered (in case the finished skim isn't quite circular - otherwise the absolutely circular black edging would show it). I'll post again after the plasterer has been in on Monday - hopefully he'll have no issue with it. But so far so good.
Did have to hire a huge tower scaffold though. Ours only goes up about 3m and they needed the platform for this work at over 5m. Its still pretty hairy standing on a step ladder on top of the platform but even I can reach the roof light from the top. Bodes well for painting.