Easy to work with. Feels even better over 42 liner. Cleans up well.

opted for the 12 mil guardian liner due to cost and it was on sale. was impressed with the thickness-yet very easy to cut. slightly difficult to work with in my tight crawlspace when spreading out and working out wrinkles. since I will not be entering crawlspace except to do maintenance--felt the thinner product was ok. In hindsight, if the area was higher traffic-would opt for the 20mil..after finishing the project, noticed several areas where small sharp objects were making indentations--not coming through..but since I wont be going in there--not an issue...overall--apples to oranges compared to the ancient plastic in there before.

This tape reminds me of the type of advise used in automotive, specificly to adhere the windshield to the frame. The tape sticks well to concrete but make sure you get it right the fist time as it is hard to remove from the plastic wrap and after pealing it from the concrete it won't stick well the second time. If I could make a recomondation I would suggest a wider backer than the tape membrane to ease the removal as it it very difficult to get an edge started.

Some parts of my job was over sand and some areas were hardend clay. There was also an area of old block footing with some jagged edges, so I decided to use strips of 12 mill on top of the blocks for a second layer of defence. Over all I've been crawling repedly over the plastic fixing various neglected issues due to lack of motivation to crawl around on dirt with spiders and centapieds. While the sand areas are easier on the knees, even the hard jagged edges of the clay have proven to be problem free from puncture. The house now smells better and the humidity is in check!!!

We just installed he product so we can't make any claims as to its effectiveness, durability or longevity. The major drawback to this felt is how slippery the vapor barrier is over the felt. The plastic and the installer glide over the felt like melting ice making it a nightmare to work with. The unexpected sliding tendency caused me to slip and fall a couple of times trying to stand from kneeling to walk across it. There is still a lot for me to do under the house and the slippery environment is going to make the rest of my work even harder. If I had realized the felt would end up being a drawback, I would not have completely removed the old vapor barrier all at once. I now am fighting the clock and increased humidity levels in the crawlspace. If I knew the felt and plastic together would make installation so frustrating, I wouldn't have bought the felt.