This is also a must to seal the seams. It sticks very well . Differently use this tape to do a great job.

I used this tape to encapsulate the piers in my crawl space. It stuck very well to the cinder block. I used 6 Mil plastic and it adhered perfectly.

It was first time ordering and using this tape with this company! The tape was excellent for the purpose but I will but more just to have a roll for other uses, its wide about 4" very sticky but rips easily by hand which is useful since your in a crawlspace! I will buy again and def recommend to friends and family

This tape stuck to my walls and allowed easy installation of sheeting on the walls.

 

I bought the Felt because my 125 year old crawlspace was littered with chunks of brick and the occasional broken piece of glass. It wasn't practical to try to remove all the debris. It was well worth the cost. This material is very tough; it was difficult to cut with anything except a very sharp utility knife blade. In addition to providing a great barrier, it also made the job much cleaner because I was able to roll it out and work on the felt instead of the dust and dirt.