Oh dear! Can the flue squeeze in here?

[Jimbo37]

Mmh, the flue guy installed this using lead flashing and loosely packed insulation wool, but there is condensation falling from bottom of lead. Anyone got a good understanding of how the detail should be (warm roof, insulated box) - I'm guessing solid insulation with vapour control, maybe? Also, that collar is siliconed - is that OK? Im a tiny bit nervous that the lead does not stretch down far enough. 

Ooh, I have to stop looking!!

 

 

Edited February 6, 2024 by Jimbo37