Top 10 Best 20 mil vapor barrier in 2026

Last Updated - 6/16/2026

🏆Best Choice

Crawl Space DIY

CrawlSpace-DIY - Vapor Barrier Tape, 4" x 180' PE 12mm Polyethylene Tape, Moisture Barrier Seal and Seam, Insulation Tape for Crawl Space Vapor Barrier, Marine & More

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•Our 12 mil, 4 inch wide vapor barrier seam tape was developed to be high performance, durable, moisture resistant and manufactured to withstand the most demanding conditions
•Designed to bind seams of PE films and sealing moisture barriers to encapsulate your a crawl space, vapor barrier tape bonds well to a variety of surfaces with a synthetic rubber-based pressure-sensitive adhesive designed to offer high conformability without excessive stretch
•Our crawl space seam tape is ideal for abatement and restoration, marine and boat preservation or shrink wrap, outdoor masking and stucco application/painting, as well as a sealing tape for building or underlayment purposes
•This durable, waterproof insulation white plastic tape is great for patching and repairs, bundling and housewrap applications, sealing, and separation of dissimilar metals, and more.
•Durable, moisture resistant PE (polyethylene) Insulation Tape film backing features an extremely sticky permanent adhesive for poly liners and plastic-to-plastic vapor barrier adherence, making this white seam tape a great choice for creating a dust barrier, crawl space liner, and more

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$24.99

$29.99

-17%

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PureSpace Armor

Crawl Space Vapor Barrier, 20 Mil Vapor Barrier, 10'x100', White Plastic Sheeting - Thick Plastic Sheeting, Heavy Duty Polyethylene Film, Drop Cloth Vapor Barrier Covering for Crawl Space, Basement

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•20 Mil White Plastic Sheeting - 0.02 inches thick plastic sheeting engineered from low-density polyethylene. Thickness: 20Mil, Width:10ft, Length: 100ft. covering 1000 sq.ft. Our rolls of white plastic sheeting are strong and durable - they will not tear or rip easily. Useful as a painter's tarp, vapor barrier, or for general use. Thicker and more durable than a standard 14 mil vapor barrier!
•Multi-Purpose - Our white plastic sheeting can be used as a moisture barrier, 20 mil vapor barrier, protection barrier for painting, dust containment, spray barrier and more! This 20 mil white sheeting plastic roll is great for covering and protecting lumber, equipment, and any type of machinery.
•Heavy Duty - Our white premium plastic sheeting roll is a true 20 mil polyethylene film. It is extremely durable and is great for any type of general use. Simply unpackage and unroll the roll of white plastic sheeting and use as needed. A simple solution for your plastic covering needs.
•Longevity - This 20 mil crawl space vapor barriers are manufactured for strength and durability. Our plastic cover has no odor and can be reused, ensuring that the polyethylene sheeting will not rip or tear, even after extended use.
•White Premium Plastic Sheeting - PureSpace Armor offers premium heavy white plastic sheeting for all uses. Our plastic sheeting 10mil is a staple among construction professionals, hobbyists, and DIYers.

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$426.99

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PureSpace Armor

Crawl Space Vapor Barrier, 20 Mil Vapor Barrier, 10'x50', White Plastic Sheeting - Thick Plastic Sheeting, Heavy Duty Polyethylene Film, Drop Cloth Vapor Barrier Covering for Crawl Space, Basement

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•20 Mil White Plastic Sheeting - 0.02 inches thick plastic sheeting engineered from low-density polyethylene. Thickness: 20Mil, Width:10ft, Length: 50ft. covering 500 sq.ft. Our rolls of white plastic sheeting are strong and durable - they will not tear or rip easily. Useful as a painter's tarp, vapor barrier, or for general use. Thicker and more durable than a standard 14 mil vapor barrier!
•Multi-Purpose - Our white plastic sheeting can be used as a moisture barrier, 20 mil vapor barrier, protection barrier for painting, dust containment, spray barrier and more! This 20 mil white sheeting plastic roll is great for covering and protecting lumber, equipment, and any type of machinery.
•Heavy Duty - Our white premium plastic sheeting roll is a true 20 mil polyethylene film. It is extremely durable and is great for any type of general use. Simply unpackage and unroll the roll of white plastic sheeting and use as needed. A simple solution for your plastic covering needs.
•Longevity - This 20 mil crawl space vapor barriers are manufactured for strength and durability. Our plastic cover has no odor and can be reused, ensuring that the polyethylene sheeting will not rip or tear, even after extended use.
•White Premium Plastic Sheeting - PureSpace Armor offers premium heavy white plastic sheeting for all uses. Our plastic sheeting 10mil is a staple among construction professionals, hobbyists, and DIYers.

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$218.99

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BlueTex Insulation

BlueTex Insulationㅤ 6" Wide x 180' Long White Vapor Barrier Seam Tape - 1 Roll Waterproofing and Great for Crawlspaces, Insulation Repair, Underlayment Seams, Metal Building Insulation Seams

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•6" wide x 60 Yards/180 ft. Long On Each Roll
•Crawlspace Vapor Barrier Waterproof Tape: Use in any environment where you're trying to control vapor and moisture.
•Made in USA - Glossy, Bright White Finish Looks Good Against White Insulation
•Repair or Seam Any Insulation: Metal Building Insulation That's Old, Dirty, or Torn Can Be Sealed and Fixed with This Tape
•Seams Underlayments and House Wrap: Great on roofing applications, new construction for house wrap, or anywhere else you need a water-tight seam!

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$38.95

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Crawldryer

Crawl Space Vapor Barrier, 10Mil Film, 10' x 100', Drop Cloth Vapor Barrier Covering for Crawl Space Encapsulation, Thick Plastic Sheeting, Black and White Panda Film, Heavy Duty Polyethylene Film

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•Crawl Space Vapor Barriers - 10 Mil thick heavy duty durable plastic sheeting engineered from high density polyethylene. Thickness: 10Mil, Width:10ft, Length: 100ft. covering 1000 sq.ft. Our rolls of Black and White Panda Film plastic sheeting are strong and durable, they will not tear or rip easily. Useful as your crawl space encapsulation material, painter's tarp, vapor barrier, or anything you want to cover and protect.
•Reliable and Durable - This heavy-duty 10 mil vapor barriers are manufactured for strength and durability. Our plastic cover is ideal for vapor barriers and crawl space encapsulation material, and blocks vapor and mitigates radon gas. and can be reused, ensuring that the polyethylene sheeting will not rip or tear, even after extended use.
•Black and White Side - This panda film is smooth and the surfaces is easy to clean, both of which can block water vapor. The black side creates a dark space that prevents light from penetrating, The white side offers over 90% reflectivity, Keep your crawl space not only dry, but also clean and bright.
•Multi-Purpose - Our 10 mil plastic drop cloth can be used as a barrier film, vapor barrier, protection barrier for painting, spray barrier and more! It is a staple among crawl space DIYers, construction professionals and hobbyists. Ideal for covering and protecting equipment and insulate soil, create greenhouses / warm house cover, and your summertime water slip and slides.
•Appropriate Packaging Design - utilizing roll packaging for easy unrolling and folding, minimizing creases, and enhancing aesthetics. During transportation, we employ cardboard packaging to provide maximum product protection, delivering a high-quality product to our customers.

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$134.99

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Crawldryer

Crawl Space Vapor Barrier - 20 Mil Vapor Barrier - (10' x 50') - Tear Resistant, Heavy Duty Vapor Barrier, Drop Cloth Moisture Barrier Thick Plastic Sheeting Covering for Crawlspace Encapsulation

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•Crawl Space Vapor Barrier： Our 20 Mil polyethylene crawl space vapor barrier is designed for maximum durability and tear resistance. This thick, robust film is perfect for a wide range of applications, including as a concrete vapor barrier, general moisture barrier, or to protect sensitive areas from water damage. With a substantial 14 mil thickness, it offers superior insulation and protection against humidity. Dimensions: 10' x 50'.
•Versatile and Multi-Purpose： Ideal for crawl spaces with abundance of stones and gravel, basements with potential water seepage, and other areas requiring moisture control, our heavy-duty white vapor barrier ensures reliable protection for your home. Its smooth, easy-to-clean surface makes it suitable for a variety of applications, providing long-lasting humidity control and safeguarding your property from moisture-related damage.
•Built for Long-Lasting Durability： Crafted for strength and durability, our 20 Mil crawl space vapor barrier is designed to withstand the test of time. It’s odor-free and reusable, with no risk of tearing or ripping, making it perfect for both professionals and DIY enthusiasts. Even after extended exposure, this high-quality polyethylene sheeting continues to deliver reliable moisture protection.
•20 Mil Heavy-Duty Vapor Barrier： Crawldryer’s 20 Mil vapor barrier is made from top-quality LDPE (low-density polyethylene), ensuring exceptional strength and reliability. Trusted by contractors, DIYers, and hobbyists alike, this heavy-duty plastic sheeting is an essential tool for both residential and commercial applications.
•Convenient Roll Packaging： Our vapor barrier is conveniently packaged in a roll, making it easy to transport, handle, and install. The packaging ensures that the product arrives in perfect condition, ready to be unrolled and deployed where needed. This provides optimal protection for your crawl space or any other vulnerable areas.

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$229.99

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Crawldryer

Crawl Space Vapor Barrier - 20 Mil Vapor Barrier - (10' x 100') - Tear Resistant, Heavy Duty Vapor Barrier, Drop Cloth Moisture Barrier Thick Plastic Sheeting Covering for Crawlspace Encapsulation

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•Crawl Space Vapor Barrier： Our 20 Mil polyethylene crawl space vapor barrier is designed for maximum durability and tear resistance. This thick, robust film is perfect for a wide range of applications, including as a concrete vapor barrier, general moisture barrier, or to protect sensitive areas from water damage. With a substantial 14 mil thickness, it offers superior insulation and protection against humidity. Dimensions: 10' x 100'.
•Versatile and Multi-Purpose： Ideal for crawl spaces with abundance of stones and gravel, basements with potential water seepage, and other areas requiring moisture control, our heavy-duty white vapor barrier ensures reliable protection for your home. Its smooth, easy-to-clean surface makes it suitable for a variety of applications, providing long-lasting humidity control and safeguarding your property from moisture-related damage.
•Built for Long-Lasting Durability： Crafted for strength and durability, our 20 Mil crawl space vapor barrier is designed to withstand the test of time. It’s odor-free and reusable, with no risk of tearing or ripping, making it perfect for both professionals and DIY enthusiasts. Even after extended exposure, this high-quality polyethylene sheeting continues to deliver reliable moisture protection.
•20 Mil Heavy-Duty Vapor Barrier： Crawldryer’s 20 Mil vapor barrier is made from top-quality LDPE (low-density polyethylene), ensuring exceptional strength and reliability. Trusted by contractors, DIYers, and hobbyists alike, this heavy-duty plastic sheeting is an essential tool for both residential and commercial applications.
•Convenient Roll Packaging： Our vapor barrier is conveniently packaged in a roll, making it easy to transport, handle, and install. The packaging ensures that the product arrives in perfect condition, ready to be unrolled and deployed where needed. This provides optimal protection for your crawl space or any other vulnerable areas.

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$429.99

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Crawl Space DIY

Whitecap - Crawl Space Vapor Barrier - 20 Mil (12' x 100'), Thick Plastic sheeting, Drop Cloth Moisture Barrier Covering for Crawl Space Encapsulation, Heavy Duty Polyethylene, White Woven Sheeting

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Vapor Barrier - .020 inches thick plastic sheeting engineered from low-density polyethylene. Our rolls of white plastic sheeting are strong and durable - they will not tear or rip easily. Useful as a painter's tarp, vapor barrier, or for general use. This 20 mil vapor barrier will help insulate due to the thickness. The dimensions of this product are 12' x 100'.
•Multi-Purpose - Our white plastic sheeting can be used as a moisture barrier, 20 mil vapor barrier, protection barrier for painting, dust containment, spray barrier and more! This 20 mil white sheeting plastic roll is great for covering and protecting lumber, equipment, and any type of machinery.
•Longevity - This 20 mil white plastic sheeting is manufactured to withstand any type of use. It will stand up to rain, wind, cold, and heat, ensuring that you get excellent use out of it. Our thick white plastic sheeting is engineered to be a superior material, usable for many different applications.
•Heavy Duty - Our white plastic sheeting roll is a true mil polyethylene film. It is extremely durable and is great for any type of general use. Simply unpackage and unroll the roll of white plastic sheeting and use as needed. A simple solution for your plastic covering needs.
•Premium Vapor Barrier - Crawlspace-DIY offers premium vapor barriers for all uses. Our plastic products are constructed from quality LDPE - low density polyethylene. Our plastic sheeting 20 mil is a staple among construction professionals, hobbyists, and DIYers.

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$449.99

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Farm Plastic Supply

Farm Plastic Supply Crawl Space Vapor Barrier, 20 mil - Thick Plastic Sheeting, Drop Cloth Moisture Barrier for Crawl Space Encapsulation, Heavy Duty Polyethylene, Black & White Panda Film (12' x 50')

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•20 Mil Black/White Dura Smooth Crawl Space Vapor Barrier - .02 inches thick plastic sheeting engineered from low-density polyethylene. Our rolls of black plastic sheeting are strong and durable - they will not tear or rip easily. Useful as a crawl space vapor barrier, vapor barrier, painter's tarp, vapor barrier, or anything else.
•Reliable & Durable - This heavy-duty 20 mil vapor barrier is manufactured for strength and durability. Our plastic cover is ideal for vapor barriers and crawl space encapsulation material, and blocks vapor and mitigates radon gas. and can be reused, ensuring that the polyethylene sheeting will not rip or tear, even after extended use.
•Black & White Side - This panda film is smooth and the surfaces is easy to clean, both of which can block water vapor. The black side creates a dark space that prevents light from penetrating, The white side offers over 90% reflectivity, Keep your crawl space not only dry, but also clean and bright.
•Uniform Tear Resistance - Our thick 20 mil plastic sheeting roll is designed for applications requiring high tear strengths. The durable plastic is engineered with harsh conditions in mind and is built to withstand these environments.
•UV Resistant - This premium plastic product is engineered to withstand the elements. It will hold up under inclement weather and is the perfect option for a durable, UV resistant cover for silage. Dura smooth is engineered with UV Inhibitors, increasing outdoor product longevity.

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$299.99

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Farm Plastic Supply

Farm Plastic Supply - Crawl Space Vapor Barrier - 20 mil - White Heavy Duty Plastic Sheeting - Thick Polyethylene Film, Drop Cloth Vapor Barrier Covering for Crawlspace and Basement (12' x 25')

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•20 Mil White String Reinforced Plastic Sheeting - 0.020 inches thick plastic sheeting engineered from low-density polyethylene. Our rolls of white plastic sheeting are strong and durable - they will not tear or rip easily. Useful as a painter's tarp, vapor barrier, or for general use. Thicker and more durable than a standard 20 mil vapor barrier!
•Multi-Purpose - Our white plastic sheeting can be used as a moisture barrier, 20 mil vapor barrier, protection barrier for painting, dust containment, spray barrier, shrink wrap, greenhouse plastic, and more! This 20 mil white sheeting plastic roll is great for covering and protecting lumber, equipment, and any type of machinery.
•Heavy Duty - Our string reinforced white premium plastic sheeting roll is a true 20 mil polyethylene film. It is extremely durable and is great for any type of general use. Simply unpackage and unroll the roll of white plastic sheeting and use as needed. A simple solution for your plastic covering needs.
•Longevity - This 20 mil crawl space vapor barriers are manufactured for strength and durability. Our plastic cover has no odor and can be reused, ensuring that the polyethylene sheeting will not rip or tear, even after extended use.
•Premium Plastic Sheeting - Farm Plastic Supply offers premium heavy duty plastic sheeting for all uses. Our plastic products are constructed from quality LDPE - low density polyethylene. Our plastic sheeting 20mil is a staple among construction professionals, hobbyists, and DIYers.

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$204.99

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