Diffusion-tight sock, how to seal around penetration (ABC-VHS)?

[JOW]

Yes, as I said, how do you do this?

 

[JOW]

 

[JOW]

Come on now, one of you must have done this before!
The pipe in question is exhaust air from a Heru 130....

 

[JOW]

And it is a flexmpare there, but it must be at least condensation-insulated between the damper and the roof hood's insulation.

 

[mariatherese]

I don't know how to do it, but I am also interested in the answer so I'm "subscribing".

 

[JOW]

One might think that ABC-VENT would be 1dm more generous with the pipe and pipe lagging (insulation) on their roof vent. Since the roof is a "normal" roof, 25x38 batten + 25x50 counter-batten, concrete tiles, the vent is in its correct element, so to speak.

It was the same with the exhaust duct, but there I finished insulating a section and then pushed up against the vent's insulation. But there, it doesn't need to be diffusion-tight.