ᐅ Vapor barrier / vapor retarder cable entry

Hello forum,

we had to run some cables through the vapor barrier foil afterwards.
What is the best way to restore airtightness? Unfortunately, we cannot use a collar glued from below, as the hole is only accessible from above (attic).

The vapor barrier foil is attached from below to an OSB board.
Ceiling construction – from bottom to top (gypsum board/batten/foil/OSB boards/insulation/wood paneling)

My idea is to generously seal the gaps between the cables with a special adhesive from a cartridge (manufacturer: S***).

Is this an appropriate solution?

Regards
NemoN

I would use a combination: tape and sealing adhesive. I had the same issue. I got the tip from the installation video, around minute 23. isover-live.de/folienverlegung-dampfbremse-1.html