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So there's a couple of roof rafters running across the window opening!
If you have scaffolding up and don't ever intend cutting the rafters out, replacing it now with a top hung would mostly pay for itself next time you need a couple of slates replacing.The current 24mm thick glazing should be a bit warmer compared to the old 16mm for next winter. Or at least just not leak whenever it rains.
user69121
BrickMan
Yeah she's an old one! Ggl-8. Before they added the uk, or 0x designations.
The two pieces of vertical grey metal are still there, riveted on (flew a drone over roof to take a look), but the horizontal section the metal has fatigued and fallen off.
Ideally could replace whole thing for a gpl uk08 as same size and top hung so that it will actually open....
So it was installed to replace the 1880 ish stairwell light. Has a flat decorative glass ceiling over the actual stairwell which is still there in mostly one piece. Will look nicer when cleaned up.
Velux plonked on top of roof /boards (it's slate, felt then timber boards), so a mid pivot can't open more than 2cm due to the rafters being below.
Originally that was way onto roof, to do maintenance etc. So since this thing was done the building has gone downhill, as no one wants to pay £500 for scaff each time to get up there.
So in future might just replace whole unit with a top hung velux gpl type, so that can easily get on the roof once more. Only around £550 which i thought was very reasonable price tbh! But right now my indoor job list is massive