3 Sizes Available- All are American Made

20 Mil Vapor Barrier SilverBack® 13'4"x50'

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Price: $364.35

Premium grade 20 Mil crawl space vapor barrier. Lasts a lifetime with no fillers, pinholes or unnecessary chemical additives.

Part Number: 20MSB-50

Availability: In Stock

Features:
Made in the USA

Other Sizes Available

Naturally resists Mold and Mildew

Bright white face/Silver Back

Additional discounts on a Dehumidifier if purchased with this vapor barrier

Super strong reinforcement makes tearing nearly impossible

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Description
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Need to Know

20 Mil SilverBack®
Reinforced Vapor Barrier for Crawl Space Encapsulation

This vapor barrier actually measures 20 mil at the plastic, not the thread.
20 Mil Vapor Barrier SilverBack® 13'4"x50'

Top-

The top of the 20 Mil SilverBack® is a brilliant white. This clean white color helps to reflect light in the crawl space and give it a pleasant appearance. The top layer is made from 100% virgin polyethylene resin to give the absolute best performance and last a lifetime.

The Middle-

The middle of the 20 Mil SilverBack® houses the polyester thread reinforcement. This reinforcement has one job and that is to eliminate tearing. The grade of polyester cord is the same that is used in tires to keep the rubber stable at highway speeds. The reinforcement is permanently embedded in the vapor barrier with an additional layer of molten polyethylene. This insures the 20 Mil SilverBack® will never delaminate.

The Back-

The back of this product is a silver color, which is the trademark of the SilverBack® brand. Color additives do add cost to the product, but we view this cost as necessary to help homeowners and contractors know they are buying a genuine quality product. The back layer does not have pinholes or fillers and naturally resists mold and mildew.

Use-

20 Mil SilverBack® is thick enough and strong enough to allow for medium to heavy storage, heavily traveled areas and to cover stone/concrete floors. We still recommend the use of the Felt550® if the floor has objects that are sharp and cannot be removed.

Thickness-

The actual 20 Mil thickness of the 20 Mil SilverBack® is one of its strongest features. We measure actual thickness at the plastic, not the reinforcement thread like others do. See the video below to see how it is measured and compared to the competition.

Weight-

The SilverBack® 20 Mil vapor barrier weighs 109 pounds per 1000 square feet or 109 MSF. Compare that to the competitors 20 Mil @ 74 pounds per 1000 square feet. That's 35 pounds less plastic for the same money as the SilverBack®.

Use the 20 Mil SilverBack® on the floor and the 12 Mil GuardianLiner™ on the walls to keep the costs inside the budget.

20 Mil= .020 inches

Due to the expanding and rising UPS handling and shipping fees we are forced to add $9.28 at checkout for each roll.

Rating Snapshot

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Average Customer Ratings

5.0

Great Product

I used 1 roll of the 12 mil and larger roll of the 20mil. Both are fantastic. I had old clear 6 mil, which I went right over. Once I had the entire floor covered, even before taping the seams, I could feel and smell the difference in moisture reduction. I followed all of the videos and written process.

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Reviewed by: Frank from Raleigh NC on 2/21/2015

Excellent Liner!

I am very happy with this liner! At first I was worried because I could only get it 13.5 feet wide, but as it turns out, most of the supports under the house were about 12 feet apart, so it worked out great. It was cold where we installed the liner, and this stuff is really stiff when it gets cold, so we stored the role indoors so it would warm up. This helped a great deal. Also, unroll just the amount you need, then pre-fold it where your walls are, then roll it up again to get it under the house. This way it unrolls under the house and you don't have to manipulate it a bunch. Very good product. Highly recommended...

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Reviewed by: John Thomas from Elk Park, NC on 2/15/2015

Very happy with product and support.

With rock hard chunks of clay and sharp pieces of concrete debris all around, anything less then 20mil would have been a disaster. If I had to do this job again, I would have gotten 2 six foot wide rolls rather then the 13 foot wide roll. The 13 foot width was very difficult for my brother and me to manage when your on your knees and belly.

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Reviewed by: Tom B from North Georgia on 4/19/2014

Great Products and Service

. I was greatly impressed with the quality of the materials. The vapor barrier, both the 12 mil and 20 mil material, was extremely tough and have proven to be very effective in the short time it has been down. It almost would take a deliberate act to perforate the 20 vapor barrier which I used in the area that receives the most traffic.

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Reviewed by: John Rawlings from NC on 1/2/2012

Vapor barrier

Great product, easy to use and install, very knowledgeable and helpful staff.

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Reviewed by: Keith from Winston, nc on 6/6/2016

Good stuff

Works well

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Reviewed by: Alan from Tennessee on 12/6/2015

review of 20 Mil vapor barrier

Works great - our crawl space is now very clean and neat, and the chemical odor that we had in the cabin seems a lot better. Much easier to put down than the 8 mil poly that we laid it over. Worth the price.

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Reviewed by: Charles Misner from northern MN on 10/1/2015

Excellent experience

After thorough research and 2 experts advise, this plastic was perfect for our small crawlspace. The 2 companies that we consulted tried to scare us away from DIY saying it'll smell like cat urine. Your website helped explain all those scenarios and they did not apply to us. It was one of our easiest DIY projects ever. The only issue was that we only used half a roll!

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Reviewed by: S. Dansey from West Virginia on 9/24/2015

Superior product

Out of all of the products we have researched, this is the best option for stone foundations we have found, as well as the most cost effective. Easy to work with. There has been a noticeable difference in the air quality since it has been installed and we are only half finished! It has eliminated nearly all of the musty, basement odor. In the past, we have tried ionizers (which only masked the smell), and de-humidifiers, which helped but could not entirely remedy the situation.

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Reviewed by: Charles from KC area on 9/14/2015

20 mil encapsulation

This company has some of the best products and great service. The 20 mil encapsulation material, seam tape, and foundation seal were better than I expected. The foundation pins were a little flimsy. Our crawlspace looks like it was done professionally and we did it ourselves with your great products. Keep up the great work.

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Reviewed by: Troy Braman from Bath, Michigam on 9/8/2015

Very pleased!

This stuff was easy to use and virtually indestructible. High quality product. Would highly recommend it.

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Reviewed by: Robert from Naples, ME on 8/25/2015

Clean, Bright, and Beautiful

The 675 Sq Ft rolls of 20 Mil SilverBackâ„¢ vapor barrier were quite heavy. This speaks for the true quality of the material. I have prior experience with a competitor's crawl space liner that was advertised as a 90 mil liner, which weighed less than half as much as the 20 Mil SilverBackâ„¢ from CrawlSpace Repair. I am very happy with the customer service and the quality of the materials I bought from CrawlSpace Repair. My mother's crawl space is now clean, bright, and beautiful.

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Reviewed by: Jose Azcuy from Georgia on 8/6/2015

One Happy, Satisfied Customer

Larry really simplified a job that I thought was going to be a nightmare. At his suggestion, I encapsulated my crawl space with the 20 Mil SilverBackâ„¢ and added an AprilAire dehumidifier. Now I am one happy, satisfied customer because there is no more water running off ducting and I finally have a crawl space that is dry.

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Reviewed by: David Warf from Tennessee on 8/6/2015

2 Thumbs Up

It has been a year now since I installed your SilverBackâ„¢ liners and I'm still impressed with it. The basement is much dryer and a lot warmer, through last winter. This spring, which is when I used to have water laying on the dirt basement floor, there was no water. And no water showed up in any other part of the basement. 2 large thumbs up.

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Reviewed by: Fred Bain from Ontario, Canada on 7/31/2015

MR.

VERY COST EFFECTIVE. REQUIRES TWO PERSONS TO INSTALL.

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Reviewed by: Larry Snowden from WESTLAND MI on 5/22/2015

Excellent, excellent product

I cannot recommend this product enough. We installed it in our crawl space after the Colorado floods in 2013. After installing it, our crawl space has been warm and dry and we have had no mold issues. I was hesitant to use the foundation pins, but the person we talked to said we really needed them, and he was right. We were able to rent a pin gun from our local hardware store and the combo of the pins plus the caulking has held up extremely well. In this day and age of bad customer service and poor quality products that look good but don't deliver, it is nice to find a product that does what it says it will and exceeds your expectations. Highly recommend.

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Reviewed by: Shellie from Colorado on 8/11/2014

Best Quality and Service

I absolutely love the vapor barrier plastic. I have done a lot of research about vapor barrier plastics before I made my purchase and your product is everything you advertised. The 20 Mil SilverBackÃ´ is the strongest plastic, even the handyman that I hired to install it said it was the best quality he had ever installed. He asked me for your address and said he would recommend this product to all his clients. Also, my order was filled very quickly and arrived in just a few days after I placed my order. Thank you! Great product and service!

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Reviewed by: (Verified Buyer) Lydia Pierce from Georgia on 7/18/2014

Home Owner

I purchased the 20 Mil liner for my new construction crawl space and had it installed and then sealed to the walls by a reputable spray foam company. They and I are were impressed with the product. The crawl space has extremely low humidity since installation. The liner seems very durable. I am happy with the choice.

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Reviewed by: (Verified Buyer) Eric Neville from Beverly Hills MI on 3/10/2014

Easy to use, excellent quality

Wow, how happy am I that I purchased this product. Our basement now smells good, dry, and clean. Love how the white makes everything look clean.

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Reviewed by: Lucie from Fort McMurray, Alberta on 2/23/2014

Tough

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

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Reviewed by: TJ from North Carolina on 2/19/2014

Excellent Materials and Advice

The items in this order were superb and did just what was needed as did all of the CrawlSpace materials. The encapsulation went well because the materials are excellent and the advice/directions were on target and very helpful. Also, the success was due to the staff at CrawlSpace Repair, their excellent advice, and the printed directions. I am a very pleased customer with the materials and service.

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Reviewed by: (Verified Buyer) Wendell Wright from Virginia on 1/15/2014

Quality product

I wanted to install a high quality liner in my crawlspace that would not need to be replaced for many many years, if ever. The Silverback 20 mil liner was the perfect fit. When I had a couple installation questions the customer service was excellent. If you want a high quality product to protect your crawlspace I highly recommend this product.

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Reviewed by: (Verified Buyer) Karl Smith from Nantucket, MA on 1/7/2014

incapsulating the cral space

great sturdy strong product, fast to delivery highly recomanded

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Reviewed by: troy from portland on 1/6/2014

Great Stuff

This plastic is the highest of quality . I used the twenty mil with felt and it has made a world of difference. I highly recommend this product and company.

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Reviewed by: Dale from Nebraska on 12/8/2013

Easy to Use

Products are fantastic and easy to use. My crawl space looks fantastic and clean. All the moisture from the Colorado flood that made its way upstairs is all calming down.

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Reviewed by: (Verified Buyer) Tracy Johnson from Colorado on 12/3/2013

Excellent, tough product

My son and I installed the 20MIL Silver Back vapor barrier in our 11x22 dirt floor crawlspace. The product is excellent and I couldn't be happier. The 20MIL liner is nice and thick and tough, so Rubbermaid tubs and boxes we store in the crawlspace scoot cross the liner with no problems and no chance of tearing the liner. I couldn't believe how fast it came! I ordered it online, the next day it was here! Would highly recommend it to anyone considering lining their crawlspace.

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Reviewed by: Darain Schug from El Paso, IL on 11/7/2013

Good - Stuff

I installed this 20 mil SilverBack in a 24x26 crawl space. The results were great. You can't go wrong with this product. I expect it to last for many years. Buy it.

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Reviewed by: KB from IOWA on 10/12/2013

Fantastic and Easy to Use

I used the 20 Mil and 12 Mil SilverBackÃ´ crawl space vapor barrier this weekend and the product is fantastic, easy to use, and arrived incredibly fast and undamaged. The Waterproof Seam Tape was also something I was glad I purchased. Thanks for making a great product!

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Reviewed by: (Verified Buyer) Chan Timmons from Colorado on 10/8/2013

Great Product

The 20 mil vapor barrier was great, easy to work with and my customer was well pleased. I will use again because it exceeded my expectations in every way.

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Reviewed by: Jeff Whitlatch from West Virginia on 7/13/2013

Exceeded Expectations

After spending 3 years researching for a quality crawl space vapor barrier for my cabin - I went with your 20 mil vapor barrier. The sales staff were very helpful, reviewing the products required, and giving installation advice. The installation went great and I could not be more pleased with the products. Bright white, no off gassing, no more musty smell from the crawl space. The product exceeded my expectations (and that almost never happens for me).

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Reviewed by: Judith Bemister from Washington on 5/31/2013

Very Satisfied

Our contractor has completed installation of the vapor barrier in our crawl space.....he was very satisfied with the components we purchased from you. Your membrane was clearly superior to materials available locally.

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Reviewed by: Richard Levy from Maine on 2/13/2013

Nice Quality

The Silverback vapor barrier seems to be very durable and easy to work with. I did a lot of leveling of the gravel in my crawlspace which made everything relatively square. I can see how an irregular surface may lead to a more difficult installation.

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Reviewed by: Paul Cieply from Pickerington, OH on 12/8/2012

High Quality

The materials were of high quality and worked as advertised. I used the 20 mil SilverBack over 5100 felt.

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Reviewed by: James Gates from Virginia on 6/27/2012

High Quality

The materials were of high quality and worked as advertised. I used the 20 mil SilverBack over 5100 felt.

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Reviewed by: James Gates from Virginia on 6/27/2012

I am glade I was able to find you on line.

The 20 mil silver back plastic vapor barrier was great. The quality of plastic was very high with no odor and extremely easy to work with. I was also very pleased with the sales staff. They are very knowledgeable and extremely helpful. Thanks again for the great service and material

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Reviewed by: Behrooz Goodarz from NJ on 12/27/2011

Like working with this products.

20 mil is a good strong durable product

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Reviewed by: Brian Taylor from IN on 12/2/2011

Wonderful Product

I used this product on my walls and am very pleased with the product. I referred this product to friends.

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Reviewed by: Michael Howell from VA on 8/23/2011