Under house pink installation????

Question

I asked this question a few days ago. I got a lot of people saying both...so I'm not sure which is right yet..

Someone in my family had installation put under his house. It's the type of installation that's pink fiber glass on one side and paper on the other. The people who did it put the paper side up, towards the floor and pink side down. So when you look under the house you can see the pink. Some family members say it's done right, and some say it's done wrong (upside down) WHICH IS THE RIGHT WAY!!!!! If you have any websites that can back it up post a link please, if not just tell me which way you think is right! THANK YOU!!!!

Answer 1

The vapor barrier (paper) ALWAYS goes toward the heated side of the structure.  Have a look at http://www.owenscorning.com/around/insul...

Scroll down a bit, see item #1 under Installation.  In your case, paper up is correct.

Answer 2

Always install the insulation with the vapor retarder toward the warm side of the structure in heating climates. In a vented crawlspace, the warm side is usually up, closest to the floor.