great product just wish when rolled from manufacture that there were no creases.all the materials i received were of top quality and easy to place. just one word of caution, buy the felt backer also. i placed mine on 1/8th" limestone chip and it seems like it could poke through the liner. but all in all great product.

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.

My husband and I just completed our crawlspace encapsulation project using the 20ml Guardian Vapor Barrier from this website. It was a grueling job (not recommended for 58 and 60-year-olds) but we got it done. It took several weekends some weeknights, but well worth it. Humidity has already dropped 35%. Our next step is installing air ventilation system then we feel our foundation will be secure. A tip I would offer is to consider coverage of your crawlspace walls when ordering materials. Our house is about 1800 sq feet so I ordered two 1,000 sf rolls, but because of all the wall space and support pillars that needed to be covered I ended up needing to order an additional 1,000 sf roll to finish the project. So glad it's done!

I'm a contractor in Pagosa Springs CO. I have now encapsulated 3 crawlspaces with Guardian liner and other products from crawlspace repair. I couldn't be happier with the products, the instructional videos, (gave me the ability to do a professional job from the beginning) and the fast efficient service. My only complaint, they sent me a 2x tee shirt, I'm a large. Lol