Whitecap – Woven Vapor Barrier – 20 Mil (12′ x 100′), Thick Plastic sheeting, Drop Cloth Moisture Barrier Covering for Crawl Space Encapsulation, Life-Time Warranty

10 reviews for Whitecap – Woven Vapor Barrier – 20 Mil (12′ x 100′), Thick Plastic sheeting, Drop Cloth Moisture Barrier Covering for Crawl Space Encapsulation, Life-Time Warranty

1. 

   Rated 5 out of 5

   Diana Willy – October 11, 2025

   The materials from Crawlspace-DIY are exceptional quality and very puncture resistant. They were packaged and delivered well from. The product weighed over two hundred pounds and there was no damage to the cardboard packaging. It arrived on time.

2. 

   Rated 5 out of 5

   Willie – January 7, 2026

   Good quality vapor barrier and much thicker than the ones available at the big box store. Was pliable and easy to work with in a low ceiling crawl space but thick enough we could crawl on top of it

3. 

   Rated 5 out of 5

   Diana Willy – February 3, 2026

   The materials from whitecap are exceptional quality and very puncture resistant. They were packaged and delivered well from Amazon. The product weighed over two hundred pounds and there was no damage to the cardboard packaging. It arrived on time.

4. 

   Rated 5 out of 5

   Michael Chase – February 3, 2026

   Received the vapor barrier on time and in good condition. Using this for encapsulation of an old crawl space in a 100+ year old 2 story home which was moved to the present site about 1959. Lots of old foundation concrete fragments to deal with and the white woven sheeting is expected to provide ample protection from the fragments as well as sealing off ground moisture. Previously purchased some non-reinforced sheeting from a different supplier, which has had some small punctures and isn’t working as good as the woven sheeting.

5. 

   Rated 5 out of 5

   Austin D. – February 3, 2026

   I am very impressed with the quality of this material and for the price it is even better! Super fast delivery and arrived in perfect condition! Much appreciated as I received this a week ahead of expected time which was a huge benefit to the project I am working on! currently converting a detached garage into a house for my parents and putting down a quality encapsulation material in the crawl space (which is the existing concrete slab) is a top priority to ensure we have no moisture issues years down the road. As I said the quality, ease, and price of this item far exceeds any other options I was considering (and I was considering them all)! Thanks again and I will recommend above other products. The attached picture shows it rolled out in the full 100′ length and folded in half so once unfolded it is 12′ wide.

6. 

   Rated 5 out of 5

   Richard – February 16, 2026

   Repaired a concrete crack and replaced the old barrier. This product was easily installed and seems to be of high quality. As a former disaster restoration specialist I’ve seen many barrier encapsulation projects, I believe this is one of the best for the situation that we have to correct.

7. 

   Rated 5 out of 5

   Peggy – February 16, 2026

   This 20 mil crawl space vapor barrier is durable, easy to install, and provides outstanding moisture protection. The material feels high-quality and is strong making it difficult to tear. It eliminated that musty order immediately after install making a noticeable difference in the crawl space and in my home. The seam tape was very sticky. These products are an excellent choice. Highly recommend!

8. 

   Rated 5 out of 5

   Traci – February 16, 2026

   Very nice vapor barrier material. Tear resistant woven fabric gives me comfort placing this over rough things like concrete edges.

9. 

   Rated 5 out of 5

   Dave – February 16, 2026

   Great product !!

10. 

    Rated 5 out of 5

    Peter – February 16, 2026

    Great product! 20 Mils with reinforcing. Rolls out easy and lays flat. 12 foot width will reduce taped joints for better crawl space job. Glad I didn’t buy a cheaper product. When I finish I will save $$$$ DIY!