Not all planks are vinyl, but the vinyl ones have some advantages- 1, they are not destroyed by moisture, and 2. they can take some imperfections in the floor without causing squeeks or damage. 

Tar paper would be an acceptable moisture "membrane" as long as it is installed in a shingled fashion.

Just wondering if anyone has experience with negotiating/modifying a plan to get decent insulation with moisture barrier blown in without spending that much. 

Even if you can't see it if they drywalled the interior of that crawl, you might be able to feel moisture.

Minimal moisture sensitivity, the quality products are extremely resistant to almost anything you can throw at it.

Besides the obvious things like kitchenette and bathroom, the city of LA requires you seal the slab with a moisture barrier and that you insulate the crap out of it because of a California title 23 requirement.

The author was just saying that many other types of paint could end up trapping moisture inside the brick which would cause it to deteriorate over time, that's all.

Is this a high moisture area like a basement floor or just a concrete slab in a relatively dry climate?

The first one left the place imaculate (100% security depost refund) and this last one had leaks occuring for months that she never reported, and actually moved the moisture alarms without thinking to give us a call and notify us, as well as kids with permenant markers, nail polish left on the countertops, sheetrock damage, carpet trashed, oven gross, you get the picture.  

I also work with John Edwards that does my termite/moisture inspections.