UPDATE:I went by Lowe's on my way home today and did not like the look of the plastic stick on tiles at all.

What I would do is check your basement floor first by putting a 3 foot by 3 foot piece of clear plastic down on the floor first and tape around all corners.  

One of the reviews said the Delta "chrome" cover plate was plastic, just like many of their faucets these days.

I also speculate about melting the recycled milk jugs and making white, soft plastic tiles for bathroom floors.

All the electrical outlet covers need to be changed, white plastic is ugly and cheap and has no place in a $500K home.

OP is a plasticizer  used in LVT in the past or for cheaper production and was banned in 2009 in all vinyl children's toys due to its link to autism.

And due to the vapor barrier, (a huge plastic sheet) all the little (and not so little ) poopies stayed nice moist and fresh!

The plastic ones are cheap. 

I was thinking: 1. line the wall cavities with 6mil plastic and roll insulation. 2.

You can get curtains that will meet the spec, but they're enough money that it would be cheaper to do drywall or paneling at that point.The company that did my sump pump had an add-on offer (which I didn't take up) to install fiberglass reinforced plastic (FRP) panels on the inside of the walls.