Hello,
I am in the very early stages of designing and building a passive house, based on the closed panel prefabrication method as used by construction companies such as PYC. I've been thinking about how the house is to be furnished internally and the implications of attaching heavy furnishings to the internal faces of exterior super insulated walls, either for stability in the case of fitted wardrobes etc or the suspension of wall cabinets and even TVs.
These walls, I understand have internal airtight, vapour-check boards inside of the insulation which are then battened to provide a service void of around 40+mm prior to plaster board. It is, I'm told, imperative, not to pierce that vapour board surface membrane to maintain its moisture and airtight integrity.
I would be very grateful for any observations from those with experience of self build of similar properties or builders who construct them / fit them out in on a regular basis to help understand what options are available and what would be the best course of action as the project progresses.