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Model 100779554

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100 sq. ft. 25 ft. x 4 ft. x .093 in. Premium 3-in-1 Underlayment

$0.45 /sq. ft.
Covers 100.00 sq. ft.
$44.98 /roll
  • Stable and dampens sound
  • Lightweight and flexible
  • Easy to install

Frequently Bought Together

Product Overview

Premium 3-in-1 Underlayment is the ideal choice for laminate and engineered wood floors. The product features a reflective film barrier that enhances radiant thermal properties. The underlayment is installation-friendly, lays flat and easily joins together with an adhesive strip. It is available in lightweight easy-to-work-with 100 sq. ft. rolls.

  • For use under laminate and engineered wood floors
  • Can be used on grade and below grade
  • 100 sq. ft. roll; 4 ft. x 25 ft. x .093 in.
  • Made for quick installation-lightweight, flexible, lays flat, with plastic overlap
  • Reflective film barrier enhances floor thermal and moisture properties
  • Helps smooth out minor subfloor imperfections
  • 2.3 mm thickness for improved stability and sound dampening

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Customer Questions & Answers

38 Questions61 Answers

Customer Questions & Answers

100 sq. ft. 25 ft. x 4 ft. x .093 in. Premium 3-in-1 Underlayment
100 sq. ft. 25 ft. x 4 ft. x .093 in. Premium 3-in-1 Underlayment

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4 answers

Vapor barrier

This question is from 100 sq. ft. 25 ft. x 4 ft. x .093 in. Premium 3-in-1 Underlayment
Asked by
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May 27, 2014
Does this product count as vapor/moisture barrier for under laminate? Do I need to lay a separate moisture barrier? i.e. 6 mil plastic.
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Answers (4)

Asked by
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Home Improvement Profile: Other
June 1, 2016
Answer: 
The product has vapor barriers on both sides.
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Asked by
Atlanta, GA
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Home Improvement Profile: Other
August 14, 2014
Answer: 
The product has dual films attached that serve as a moisture barrier. I recommend doing a moisture test on the subfloor before you start installation. If the readings are below the flooring manufactures established guidelines (typically less than 3 lbs/1000 sqft) you can install without a 6 mil poly.
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Asked by
Atlanta GA
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Home Improvement Profile: Professional
May 28, 2014
Answer: 
Hey Grouper,
Since this underlayment acts as its own moisture barrier, buying a sheet of plastic would be unnecessary.
If the flooring and this underlayment would be placed in a below grade (basement) concrete subfloor, then painting a sealer or paint would give yourself a better chance of reducing any chances of moisture coming through.
As long as this underlayment is installed properly, then you can Read More
Hey Grouper,
Since this underlayment acts as its own moisture barrier, buying a sheet of plastic would be unnecessary.
If the flooring and this underlayment would be placed in a below grade (basement) concrete subfloor, then painting a sealer or paint would give yourself a better chance of reducing any chances of moisture coming through.
As long as this underlayment is installed properly, then you can and will have an effective moisture barrier.
Joseph Read Less
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Asked by
Atlanta GA
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Home Improvement Profile: Professional
May 28, 2014
Answer: 
Hi Grouper,
Since the 3-in-1 underlayment acts as its own moisture barrier, using a separate moisture barrier would be useless.
If this is a concrete, and especially below grade (basement) slab, then you can seal the floor with a paint or primer to assist in preventing moisture seepage from occuring.
But, since this underlayment acts as a moisture barrier, no extra plastic of any sort would be Read More
Hi Grouper,
Since the 3-in-1 underlayment acts as its own moisture barrier, using a separate moisture barrier would be useless.
If this is a concrete, and especially below grade (basement) slab, then you can seal the floor with a paint or primer to assist in preventing moisture seepage from occuring.
But, since this underlayment acts as a moisture barrier, no extra plastic of any sort would be needed.
Joseph Read Less
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3 answers

What is the thermal resistance (R value) of this underlayment?

This question is from 100 sq. ft. 25 ft. x 4 ft. x .093 in. Premium 3-in-1 Underlayment
Asked by
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November 13, 2014
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Answers (3)

Asked by
Portsmouth, NH
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Home Improvement Profile: Professional
June 25, 2015
Answer: 
The Bellawood is actually .65 R-Value for the 89 cent (regular price). Also the Bellawood is pre-compressed and antimicrobial. I thought about which to go with and my outcome was Bellawood by far!!
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Asked by
Springfield, VA
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February 27, 2015
Answer: 
The calculated R Value based on 4.07 per in and a thickness of .093 inches is R = 0.37 and a current cost of 45 cents/foot. Compare with Roberts Airgaurd at R = 0.39 and a cost of 55 cents /foot (or lower if purchased in quantity). Bellwood premium underlayment R = 0.52375 at a cost of 90 cents / foot when on sale. Overall, this seams like a very good value.
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Asked by
Atlanta, GA
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Home Improvement Profile: Other
December 3, 2014
Answer: 
The R-Value is 4.07/inch. The other key component of this product is the reflectivity of the metalized film. The high reflectivity of the film will help reduce the effect of radiant energy.
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3 answers

the reflective surface does it go up or down?

This question is from 100 sq. ft. 25 ft. x 4 ft. x .093 in. Premium 3-in-1 Underlayment
Asked by
Montana
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November 12, 2014
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Answers (3)

Asked by
Virginia Beach, VA
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January 5, 2015
Answer: 
Reflective side down.
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Asked by
Jersey Shore
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November 14, 2014
Answer: 
The reflective surface goes down. If you look carefully, it says it right on the surface!
The dark or black side will say, "THIS SIDE UP."
Hope this helps.
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Asked by
Atlanta, GA
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Home Improvement Profile: Other
November 14, 2014
Answer: 
You can face it either way. The rolls are made to roll the reflective surface down. If you are placing any type of radiant heating system on the underlayment I would suggest laying the reflective surface up.
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3 answers

Should the reflective surface face up or face down?

This question is from 100 sq. ft. 25 ft. x 4 ft. x .093 in. Premium 3-in-1 Underlayment
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May 29, 2014
Should the reflective surface face up or face down? I have a concrete sub-floor.
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Asked by
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June 1, 2016
Answer: 
It is easier to place it down, but it doesn't matter.
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Asked by
Atlanta, GA
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Home Improvement Profile: Other
August 14, 2014
Answer: 
It rolls out faced down. If you have a radiant floor I would suggest rolling face up. It will be a little tricky because the roll is made to roll face down. If you don't have a radiant floor I would suggest following the installation instructions.
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Asked by
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June 4, 2014
Answer: 
Reflective side down.
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Customer Reviews

Rated 4.6 out of 5 by 47 reviewers.
Rated 2.0 out of 5.0 by Just OK The underlayment was just ok. I didn't notice a noticeable difference in the premium vs. standard but I hoped I would given the laminate flooring was 7mm. luckily mine was installed over a concrete slab. August 16, 2016
Rated 5.0 out of 5.0 by Premuium underlayment Excellent Product I recommend this product to anyone that is putting down a click and lock real wood. August 16, 2016
Rated 3.0 out of 5.0 by Pretty average underlayment I didnt like when I peeled back the tape it broke the vapor barrier. Pretty thin stuff. Hopefully it holds up well. No real complaints July 6, 2016
Rated 4.0 out of 5.0 by nice underlayment easy to install deadens the sound when walking on the floor April 6, 2016
Rated 5.0 out of 5.0 by Solid Product Easy to install - solid feel - all in one product - price was fair March 15, 2016
Rated 5.0 out of 5.0 by Solved a Ton of Problems! I would normally never write a Review, but this time it was so perfect of a product I thought I should say never lay a wood floor without using this product. The first part of my project I used the standard brown/red paper that the instructions said to use, however I noticed walking on the floor it has a clicking noise and the hardwood feels cheap and it wasn't. However after using this product in the bedrooms we have a floor that went together easier, no noise, and feels like we added a extra sub-floor.... This Product made life easier and we feel really good about our new floors.... It's a Must Use. November 23, 2015
Rated 5.0 out of 5.0 by Great Product The underlayment rolled out easy and the taped ends to stick the new roll to was helpful so there was no shifting. October 1, 2014
Rated 4.0 out of 5.0 by Works great I've used this under my click-lock solid bamboo flooring a couple of times now. It goes down quick with a couple staples to hold it in place. 1 floor has been down for over a year now, and doesn't show any signs of wear. January 19, 2016
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