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What is the best 12 mil crawl space vapor barrier? If you need a 12 mil vapor barrier, where do you start?

There’s dozens of big brand 12 mil vapor barriers on the market, no wonder you’re having a tough time choosing the right type of vapor barrier you need.

So, where do you start?

My recommendation, a little bit of elbow grease and a cool new tool called Google.

We search for “12 Mil Crawl Space Vapor Barrier”

After the first 4 paid ads, this is what we see.

12 mil crawl space vapor barrier reviews

Now, the first thing you want to do is look for Reviews, right? Not just reviews, but verified reviews. That is what we see for the first 3 websites on our list.

Those websites are;

  • Crawl Space Vapor Barrier Dot Net
  • Crawl Space Depot Dot Com
  • Crawl Space Repair Dot Com

Now, we see the 12 mil reviews and review score.

  • Crawl Space Vapor Barrier – 40 reviews – 5 stars (top rated)
  • Crawl Space Depot – 2 reviews – 5 stars (not enough reviews to be considered top rated
  • Crawl Space Repair – 61 reviews – 4.9 stars (top rated)

All 3 websites are showing reviews for a 12 mil crawl space vapor barrier.

Now, due to the fact that Crawl Space Depot only has 2 reviews, I have to eliminate them. I don’t want to take any risk. 40 and 61 authentic reviews is a good solid place to look.

Let’s look at our 2 finalist.

  • Crawl Space Vapor Barrier – 12 Mil Crawl Space Vapor Barrier (GuardianLiner) Here’s the link
  • Crawl Space Repair – 12 Mil Crawl Space Vapor Barrier (SilverBack) Here’s the link


The 12 mil GuardianLiner crawl space vapor and the 12 mil SilverBack crawl space vapor barrier are obviously the best choices when it comes to the 12 mil crawl space vapor barrier.

Due to this, it’s why we have no problem recommending their product to our audience.

Remember, always do your research. It only took a few minutes to find this out. Don’t just click on the first thing you see, authenticate it, validate it and then make a decision.

Both the SilverBack and GuardianLiner are the top liners when reviewing the best 12 mil vapor barrier.