Worked great. Wide enough to use easily.

Works great for protecting the vapor barrier. Doesn’t improve crawling comfort over loose stones.

Worked great for wall.

This product works great. Absolutely essential if you are trying to affix the 12 mil barrier to a brick foundation in a space with 16 inch clearance. You have to be a contortionist. This product was strong enough to hold the plastic in place so I could belly crawl down the line. Because I had uneven brick to work with I had to go back through and put a foundation pin every 12 inches. It would not have been possible without this great product.

I have the crawl space from hell to encapsulate. The ground is covered with this awful stone that digs through your knees. The 42 550 was critical to my success. Why go through all that work of encapsulating and not take every effort to protect the vapor barrier from damage. I have 1800 feet of crawlspace floor and one third has a clearance of around 16 inches. Putting the 42 down first made it less nasty when I had to belly crawl on the floor to put the 12 mil vapor barrier up on the uneven brick foundation.