Extend PartOf facet with IfcRelSpaceBoundary

[NickNisbet]

I would like to specify
a. That every significant space should have space boundaries

This may be an applicability (anything with a space boundary should have a temperature.)
Or a requirement (any space bigger than 3m3 should have space boundaries. )

[atomczak]

So, in IDS terms, are you, @NickNisbet, proposing adding IfcRelSpaceBoundary to the list of allowed relations of the PartOf facet?

I'm not an architect. What is the practical use of such a requirement? Why not just saying "any space needs a temperature"?

[NickNisbet]

The benefit of being able to require IfcRelSpaceBoundary are that this is necessary for: 1. Thermal and energy analysis (not just target temperature). 2. Routing, accessibility and escape analysis for fire-safety, security, usability. 3. Appropriate/ inappropriate space adjacencies including Sound transmission acoustics analysis. 4. Quantity reporting for building fabric elements (for costing and sustainability). NN