Once I understood what this was, I ordered and used 5 rolls. I covered my entire crawlspace floor with it prior to putting down the vapor barrier. It is strong and really is just what I was looking for.

I bought this product due to having a lot of sharp rocks in the crawl space and I was worried about the vapor barrier getting punctured. I laid the product down and it well worth the money! It’s tough and will dull box blades pretty quick. Had to use a knife to puncture holes in the felt due to my garden staple last not poking through. Plus, I think it will help keep the VB clean when applying it. Only bad thing is that it cost a bunch to ship but I guess that is part of it since I’m in Oklahoma.

Outstanding product. Very thick and durable. No doubt this product will last.

THE DURABILITY AND QUALITY OF THIS MATERIAL SEEMS TO BE FINE. HOWEVER, THE ORDER WAS FOR ROLLS OF 50X120. I ORDERED 2 ROLLS

AND THEY WERE BOTH SHORT 2.5 FEET. I CALLED TO ADVISE BUT WAS NOT

OFFERED ANY TYPE OF ADJUSTMENT.

This is a great product for under vapor barrier. I'm cleaning up a small crawl space (passive wine cellar) and this allowed a much neater job with the vapor barrier. Looking much better than the job my contractor did 26 years ago!