This is a thick plastic, really strong. It is easier to start with walls and let the VB cover about 1-2 feet on the ground then lay the ground pieces and tape the seams. Use heavy duty scissors. Plan and cut your pieces and plan on how to unroll to make the install easier. Great stuff!

I have been very pleased at the quality of the 12 Mil SilverBack™ vapor barrier and with the Waterproof Seam Tape. The 13'4" width has worked very well for sizing sheets to lay down between the concrete pillars, and even the manufactured seam at half this width has been a convenient guide for cutting smaller sizes to go up the end walls or on the pillars. I've never undertaken such a big task in such a big, dark, damp space. But I found that proper lighting and steady work in one area at a time led to success that grew until the whole project was done. I ended up with a dry, clean, all-white encapsulation and look forward to using my crawl space for storage now that a dehumidifier has been hooked up.

This seems to be a good, durable vapor barrier. Unfortunately, there were some holes in it from the shipper. I patched them with the seam tape, but it's unfortunate that there isn't a safer way to ship this stuff.

We installed the system in my crawl space over last weekend. Yes, I am very satisfied with the product. And yes, I am very sore, head to foot, from crawling over rocks to install it. I'm glad I purchased the reinforced material (20 Mil GuardianLiner™).

This is a very nice liner that helps create a quality vapor barrier. Will purchase again for the next crawl space encapsulation I sell. Also, product came quick and this company has great customer service.