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3.83-ft W x 26.33-ft L x 6 -mils T Poly film Moisture Resistant Vapor Barrier 100-sq ft Flooring Underlayment For Use Under Vinyl Plank, For Use Under Laminate, Hardwood

Ratings & Reviews for Project Source 3.83-ft W x 26.33-ft L x 6 -mils T Poly film Moisture Resistant Vapor Barrier 100-sq ft Flooring Underlayment For Use Under Vinyl Plank, For Use Under Laminate, Hardwood

4.5
659
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Review
  4.5 out of 5
659 Reviews


90% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers overwhelmingly praise this underlayment for its exceptional moisture barrier performance and ease of installation. Most highlight its durability, reliability under vinyl plank and laminate flooring, and user-friendly design with built-in adhesive strips that simplify joining sheets. Reviewers consistently note the flexibility, ease of cutting, and ability to lay flat, making it ideal for DIY projects. Many emphasize the strong value proposition, describing it as cost-effective and high-quality. A few mention the roll size falls slightly short of advertised coverage or that it feels thinner than expected, but these concerns are minimal. Overall, most customers report strong satisfaction and would purchase again.

Customer review summary generated by AI, including incentivized reviews.
659 Customer Reviews

This barrier has less wrinkles from folds

 Would Recommend

Very easy to use

February 15, 2026
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Perfect for price and quality

 Would Recommend

Rolled out easily and flat. It was super easy to lay down without having to use any extra tape. I barely used the two sided tape strip that was on it. Highly recommend for a cheap but good quality layer under Vinyl planks.

February 7, 2026
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Very thin, but it does work.

 Would Recommend
February 7, 2026
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Just fine

 Would Recommend
February 1, 2026
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Good moisture barrier

 Would Recommend

My installer chose it to go under my lvp

January 26, 2026
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Great for installing laminate flooring!

 Would Recommend

Perfect moisture barrier and has adhesive already on it.

January 20, 2026
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May need extra tape for outside edges.

 Would Recommend

Good quality and went down easily. I really liked that it has its own adhesive strip. Just overlap and pull the adhesive backing out.

January 9, 2026
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Highly recommended over any underlayment.

 Would Recommend

Great product.

January 3, 2026
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Good quality

 Would Recommend

Good price and quality

December 29, 2025
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GREAT TO WORK AND PUT DOWN.

 Would Recommend

EASY TO PUT DOWN AND IF YOUR DOING A FLOOR, DO ADD THE MOISTURE PLASTIC.!!

December 6, 2025
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