The best product we have used for basement/crawl space systems. Performs very well and when combined with spray foam insulation creates total encapsulation for optimum performance. Customer service is both knowledgeable and helpful. We will continue to offer this product to our customers.

I am using this on the floor of the crawl space. I haven't finished the job yet, but the material seems to be very durable and I believe it will be great on the floor. However, I spread it out and opened it up and it was upside down. I opened it in the crawl space so I have to flip it over. That is a little of a pain.

I am very satisfied with my order. I wish I could give you 10 stars. You made a very good product. Keep it up and thank you so much. Now I can relax at home and not to worry about musty smell in my crawlspace. Thanks a bunch!

I'm very happy with the 12 Mil GuardianLiner along with everything else I ordered from the website. Shipping was very fast! Great company!

Just got through laying this and am very glad we chose the 12 mil. It is a very nice product and will go under our next,property.