Insulation around B-vent
All this time spent in my attic made me notice that there's insulation right up to my B-vent. Is there supposed to be clearance? It's the pink glass stuff and there is absolutely NO discolouration indicating heat issues, which I have seen in other people's attics when I've been working up there.
I actually do have some rockwool insulation lying around, here in BC it's used in firestop applications - common walls, soundproofing between floors etc. Would using a section of this stuff be the answer?