I like this product for the big peace of mind at modest cost. It's almost impossible to be 100% certain you got all the sharp, poky things out of the dirt but this felt takes care of that. Plus your knees will thank you when you forget your knee pads. The added thickness is a real plus and shows this company cares about quality and continual improvement. One last benefit: if you ever need to deal with radon gas, the felt makes a great air transfer layer u dear the vapor barrier.

Everything was perfect👍

The 12 mill would have been an overkill for the vertical surfaces. I bought a roll of this reinforced 6 mill and proceeded to slice it into four lengths. I just squared it up in the driveway and lined the cut with the relief cut in the concert and then ran a sharp utility knife along the groove, worked perfect.

The Waterproof seam tape was very sticky and did a great job of joining the overlapping barrier material. My only problem is I ended up running out and had to order additional rolls. I underestimated how much I needed to seal the cuts around columns and some of the additional cuts I needed to close a partially excavated crawlspace. I probably used more than necessary but I wanted a good seal and only wanted to do this one time,

Everything was perfect👍