Limewash paint & vapor barriers – GreenBuildingAdvisor

In CZ6 and currently installing interior smart vapor retarders. A combination of Membrain and Majrex.

Thinking about paint next. Have a strong desire to use something like JW Wall paints limewash mineral paint or similar. (https://www.jhwallpaints.com/products/lime-wall-paint).

From what I’ve read, limewash paint is very vapor open. If true, this would likely work well with the wall assembly, allowing moisture coming back through the smart vapor barrier to come back into the envelope. But I’m thinking with the ceilings, it makes sense to have a vapor barrier paint to prevent air from entering the floor system between floors 1+2, and from entering the attic space (there’s still a smart vapor barrier on the attic floor/ceiling.

Anyone have any thoughts or experience here? Am I understanding this correctly? Is this a concern/non concern?

Appreciate it–