Model # 45040

Internet #100661861

Store SO SKU #548516

SimpleSolutions Moisturbloc 120 sq. ft. 12 ft. x 10 ft. 6-mil Film Vapor Barrier Underlayment


Moisturbloc 120 sq. ft. 12 ft. x 10 ft. 6-mil Film Vapor Barrier Underlayment

  • Creates a moisture barrier
  • For use with laminate floors
  • Can be installed over concrete
$0.23 /sq. ft.
Covers 120.0 sq. ft.
$27.98 /roll
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Frequently Bought Together

Product Overview

Install Moisturbloc Vapor Barrier Underlayment between a smooth concrete subfloor and laminate flooring to inhibit moisture incursion. This 120 sq. ft. roll measures 12 ft. x 10 ft. and consists of 6 mm virgin resin polyethylene that prevents vapor from seeping into your planks. Designed for residential use, it can be installed at, below or above grade.

  • 6 mm non-recycled, 100% virgin resin polyethylene
  • 120 sq. ft. roll measuring 12 ft. x 10 ft.
  • Use when installing laminate flooring over smooth concrete subfloors
  • Helps create a moisture barrier below floor planks
  • Appropriate grade for installation: Above grade, On grade and Below grade
  • Suitable for residential use only
  • Can be installed over smooth concrete subfloor only
  • No warranty
  • All online orders for this item ship via parcel ground and may arrive in multiple boxes



Product Width (in.)
Product thickness (mil)
Recommended overlap (in.)
Roll length (ft.)
Roll width (in.)


Color Family
Commercial / Residential
Flooring Material Features
No Additional Features
Flooring Product Type
Flooring Use Type
Package coverage (sq. ft.)
Subflooring type
Use Location

Warranty / Certifications

Manufacturer Warranty
No Warranty

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Customer Questions & Answers

Can this be used as a vapor barrier between sheet rock and unfaced insulation?

Asked by: CWG
Yes. That is how I used it. Outerwall, unfaced insulation, vapor barrier, sheet rock. It's been in place 6-years, no problems.
Answered by: FelineFriend
Date published: 2017-02-11

Can I lay this over my carpet to keep my dogs from ruining my carpet when I am gone?

Can I lay this over my carpet to keep my dogs from ruining my carpet when I am gone?
Asked by: Lori
It rips fairly easily. Dog claws will probably tear through it.
Answered by: FelineFriend
Date published: 2017-02-11

How exactly is this "installed"

I haven't purchased this yet, but looks like it may meet my needs. I'm just wondering if you just lay it out on the floor and that's it? Or do you tape it down? Glue it down? I'm not seeing any instructions anywhere. Thank you!
Asked by: BabyMaisy1
I used mine on a wall, and stapled it to the 2x4s.
Answered by: FelineFriend
Date published: 2017-02-11

What is the R value?

Asked by: Sue
This item is not rated as an insulator and has no R value.
Answered by: CommunityAnswer
Date published: 2016-01-29
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Customer Reviews

Moisturbloc 120 sq. ft. 12 ft. x 10 ft. 6-mil Film Vapor Barrier Underlayment is rated 4.2 out of 5 by 21.
Rated 5 out of 5 by from Great for laminate floor installation on smooth concrete slab. Used this vapor barrier on my Allure Traffic Master laminate flooring installation. This was put on top of the relatively smooth concrete slab with an 8" overlap when taping pieces together. Then a SimpleSolutionsSoundbloc Foam Underlayment for Laminate Flooring was used on top of it for comfort and flooring sound reduction. Worked great. Was able to install this vapor barrier by myself with little to no problems. Better to install this than to have moisture set in later down the road causing mold and mildew issues. Thus damaging your flooring and affecting your health. Ensure concrete slab is smooth and free from debris prior to installation.
Date published: 2012-10-31
Rated 3 out of 5 by from Price is fair for the product...but size is nearly 3 inches short. While the thickness is adequate and as good as it gets for a moderate moisture barrier... The added antibacterial/antifungal feature should prove to help in reducing if not eliminating mold that can develop on concrete floors especially below grade. My complaint is regarding overall dimensions, the packaging and handling of the plastic at the factory. This item is not carried in the store so its impossible to hand select the best product from the shelf and leaves you up to the discretion of the picker in the warehouse. So, when I unwrapped the vinyl the first thing I noted was the odd way it was folded and rolled leaving weird creases in the vinyl. As I laid it out in a room that measured less than 9 X12 feet, I was surprised to find the length almost 3 inches short of the 12 feet listed as the minimum dimension on the product. I honestly expected the sheet to be a scant OVERSIZED rather than UNDER. It makes it difficult to overlap the sides of the room without patching... which is why I order the 10 x 12 sheet rather than a 3 foot roll.
Date published: 2013-10-26
Rated 3 out of 5 by from Short sized I was very disappointed with the sizing. The poly sheets (2) were ordered as 10'x12' but arrived as a 9'6"x 11'-10" . The fact that it was 6" short didn't allow for the manufacturer's required overlap of 8" in my 20' long room. there's just NO excuse for the product to be undersized. Other than being cut undersized........ it's a reasonable product.
Date published: 2014-04-23
Rated 3 out of 5 by from Bad underlayment Getting this to lay flat under laminate flooring is almost impossible due to the wrinkles in the roll from the way they wrap it at the factory. Do not recommend this product for laminate flooring. If you don't get ALL of the wrinkles completely out before you install the flooring, it will krinkle and make noise as you walk across the floor. I've tried everything to get the floor to stop making noise from the plastic. I've put heavy weight on the floor to flatten the plastic to no avail. Get a different plastic to install your laminate floor.
Date published: 2016-02-17
Rated 4 out of 5 by from The quality is very good. This item was packaged without due consideration that the plastic stretches under tension as it is being measured and relaxes after being cut. The length on receipt measured 9' 10" instead of 10' as advertised. This would have been OK were it not a minimum dimension
Date published: 2011-10-11
Rated 5 out of 5 by from Easy to lay down, just have a little time to let it settle before laying floor and you should get a tight water resistant membrane between the concrete and the flooring. But all told it's just glorified visqueen... any plastic sheeting with 7mm or higher rating will do...
Date published: 2011-01-25
Rated 5 out of 5 by from Excellent product This product is nicely rolled onto a cardboard tube with no wrinkles in it. Since it is virgin resin polyethylene, its film thickness and consistency should be more uniform than something that was made from recycled plastics.
Date published: 2014-04-11
Rated 5 out of 5 by from Very easy to use and more than adequate for it's purpose. Needed more than I ordered. I forgot about the 8" overlap for each piece
Date published: 2014-01-28
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