LEED definition of weatherproofing system

Lots of gray here. We've usually treated the weatherproofing system as the plane of the "Weather Resistant Barrier" or drainage plane, which is sometimes but not always the vapor barrier. Sealants on that plane and outside of it, such as exterior rigid insulation or rainscreen/ brick veneer would not be included since occupants won't be exposed to those vapors. FYI, I seem to recall a CIR that addressed sealant between two pieces of butt-jointed glass that was exposed to the interior, saying this had to comply with VOC limits, but would need to check.

Hi- any insights on roofs? For example, adhesives used under a TPO membrane, or a primer used under liquid-applied green roof membrane. You can interpret both of these products to be inside the weather resistant barrier, and if so should be VOC-compliant. On the other hand, you might also argue that they are PART OF the "weatherproofing system", not INSIDE of it....in which case they would be excluded from LEED VOC limits. Splitting hairs, I know...but that's what LEED is all about! Any thoughts?

Any progress in the "weatherproofing system border" definition?