Model # 70-026

Internet #202549346

Roberts Black Jack 100 sq. ft. 28 ft. x 43 in. x 2.5 mm Premium 2-in-1 Underlayment for Laminate and Engineered Wood Floors
0075378700265

Roberts

Black Jack 100 sq. ft. 28 ft. x 43 in. x 2.5 mm Premium 2-in-1 Underlayment for Laminate and Engineered Wood Floors

  • Provides cushioning and sound absorption
  • Protects against moisture vapor
  • Easy to install
Was  $0.27/sq. ft.
$0.24 /sq. ft.
Covers 100.00 sq. ft.
$24.08 /roll

Save 10%  through 02/02/2017

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Product Overview

The Roberts Black Jack 2-in-1 Underlayment is designed for use under floated laminate, bamboo and engineered wood floors and is ideal for many types of subflooring. Black Jack is engineered as a superior grade, 2-in-1 underlayment with a 2.5 mm thick foam layer that provides optimal cushioning and sound absorption, as well as a closed cell foam design that offers excellent moisture vapor resistance. The underlayment also features a 4 in. overlap and adhesive strip to seal out moisture and join multiple rolls.

  • For use under floated laminate, bamboo and engineered wood floors
  • Dense, closed cell structure offers moisture, mold and mildew resistance
  • Ideal for use over radiant heated floors
  • Features cushioning and reduction in sound transference
  • Easy installation with plastic overlap and adhesive strip
  • 100 sq. ft. coverage with rolls measuring 43 in. x 28 ft.
  • IIC (Impact Sound Transmission Test) rating is 68, STC (Sound Transmission Class) is 65 and Sound Transmission Loss Test is 20
  • 70-026

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Customer Questions & Answers

16 Questions27 Answers

Customer Questions & Answers

Black Jack 100 sq. ft. 28 ft. x 43 in. x 2.5 mm Premium 2-in-1 Underlayment for Laminate and Engineered Wood Floors
Black Jack 100 sq. ft. 28 ft. x 43 in. x 2.5 mm Premium 2-in-1 Underlayment for Laminate and Engineered Wood Floors

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6 answers

does this underlayment need an additional vapor barrier over concrete subfloor?

This question is from Black Jack 100 sq. ft. 28 ft. x 43 in. x 2.5 mm Premium 2-in-1 Underlayment for Laminate and Engineered Wood Floors
Asked by
depot girl
May 15, 2012
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Answers (6)

Asked by
Aubrey
Pacific Northwest
September 30, 2012
Answer: 
No. A vapor barrier is built into the product.
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Asked by
krashtd
Sarasota, FL
September 8, 2012
Answer: 
The underlayment has a 2-mil vapor barrier, which is suitable for most installations. However, if you are genuinely concerned about moisture on a raw concrete subfloor, I would recommend the 3-in-1 AirGuard or Premium underlayments, as they have a better vapor barrier in addition to the superior sound absorption and cushioning.
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Asked by
VicL
The Pit S.L.O., San Luis Obispo, CA 93401, USA
August 6, 2012
Answer: 
The product instruction says its structure provides sufficient vapor barrier. Homedepot sales person also confirmed you do not need additional vapor barrier for this product. However, if your concrete subfloor tested with higher moisture level, I would probably add additional vapor barrier for extra protection.
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Asked by
SC
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June 13, 2012
Answer: 
According to the associate at home depot, this barrier is all that was needed.
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Asked by
Merrill, WI 54452, USA
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May 21, 2012
Answer: 
I would not use it. It tears way too easy. You will spend a lot of time repairing the tears or the vapor barrier will be useless.
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May 17, 2012
Answer: 
Depot Girl-
Black Jack Laminate and Engineered Wood Flooring Underlayment is moisture resistant. If used on or above grade concrete, there is no need for an additional vapor barrier. If below grade, I would recommend using the Roberts Moisture Barricade Underlayment as a vapor barrier. Hope this helps! Thank you for choosing Roberts!
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3 answers

is this product suitable for regular hardwood nail down installation?

This question is from Black Jack 100 sq. ft. 28 ft. x 43 in. x 2.5 mm Premium 2-in-1 Underlayment for Laminate and Engineered Wood Floors
Asked by
upstate
June 26, 2012
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Answers (3)

Asked by
krashtd
Sarasota, FL
September 8, 2012
Answer: 
That depends on whether the subfloor is concrete or wood. If the planks are nailed into the subfloor, it would puncture the underlayment, which would render its moisture barrier pointless.
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Asked by
VicL
The Pit S.L.O., San Luis Obispo, CA 93401, USA
August 6, 2012
Answer: 
I don't think so.
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June 27, 2012
Answer: 
Upstate-
Roberts 70-026 Black Jack Underlayment is a dense foam underlayment ideal for floating laminate and engineered wood floors. This product is designed for on or above grade installations. I hope this helps, should you have any further questions please contact Roberts Customer Service at (866) 435-8665. Thank you for choosing Roberts!
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2 answers

Is the 68 IIC rating measured with the underlayment alone or the underlayment and another substrate/layer.

This question is from Black Jack 100 sq. ft. 28 ft. x 43 in. x 2.5 mm Premium 2-in-1 Underlayment for Laminate and Engineered Wood Floors
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May 15, 2015
My condo requires a minimum IIC rating of 70 with a 6 inch concrete slab. Is the IIC rating advertised by the manufacturer measured with the underlayment alone or with another layer included?
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Answers (2)

June 15, 2015
Answer: 
Thank you for your inquiry.
Our sound testing was completed with the underlayment over a 6" concrete slab and a suspended ceiling.
If you have any further questions please call our Customer Service (866) 435-8665.
Thank you for your interest in our product.
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May 21, 2015
Answer: 
Thank you for your inquiry.
Our sound testing was completed over a 6" concrete slab with a floating Laminate floor.
If you have any further questions please call our Customer Service (866) 435-8665.
Thank you for your interest in our product.
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2 answers

Is this Black Jack Premium 2 in1 underlayment appropriate for installation over plywood?

This question is from Black Jack 100 sq. ft. 28 ft. x 43 in. x 2.5 mm Premium 2-in-1 Underlayment for Laminate and Engineered Wood Floors
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November 26, 2014
We are installing Traffic Master laminate on a plywood sub floor over a crawl space. The crawl space is insulated and has heavy plastic laid across the ground.
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Answers (2)

December 1, 2014
Answer: 
Thank you for your inquiry.
Yes, our Black Jack Underlayment can be used with a Plywood sub floor.
If you have any further questions please call our Customer Service (866) 435-8665.
Thank you for your interest in our product..
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Asked by
Orange,Calfornia
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Home Improvement Profile: Professional
November 29, 2014
Answer: 
As long as the crawlspace was prepped by the plastic vapor barrier, then using this Black Jack underlayment over a plywood subfloor is fine.
Joseph
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Customer Reviews

Black Jack 100 sq. ft. 28 ft. x 43 in. x 2.5 mm Premium 2-in-1 Underlayment for Laminate and Engineered Wood Floors is rated 4.2 out of 5 by 82.
Rated 5 out of 5 by from Great product This underpayment was inexpensive, delivered promptly and early to install. No pops or noise under our new flooring like we used to have with old products
Date published: 2016-08-04
Rated 5 out of 5 by from Happy with it Easy to lay down. we've used it before and are satisfied.
Date published: 2016-08-31
Rated 5 out of 5 by from Quality product I rehab houses and I install a lot of laminate flooring. Lately I've been using Robert's Back Jack and I'm pleased with the ease of installation, the moisture protection and the soft feel under foot. From experience let me make this suggestion. Like most underlayment I've used this will not stand-up to unprotected foot traffic, it will snag and tear easily, so install one row at a time, apply your flooring, then install the next row, this will minimize it's exposure. Also, remove all staples and fully seat all screws and nails into the subfloor. Like most things proper preparation is the key to perfect results.
Date published: 2013-10-18
Rated 5 out of 5 by from Did exactly what I needed it to do. It didn't tear as easily as some other reviews. It covered ... Did exactly what I needed it to do. It didn't tear as easily as some other reviews. It covered better than I expected (I even had a whole roll leftover!).
Date published: 2016-11-29
Rated 5 out of 5 by from Works great The blackjack underlayment was everything we were hoping.. easy to work with and a lot better quality than other underlayments at similar prices...
Date published: 2016-11-01
Rated 5 out of 5 by from Easy to lay down, easy to cut, easy to stick together at the seams, good quality material. Easy to lay down, easy to cut, easy to stick together at the seams, good quality material.
Date published: 2016-12-12
Rated 4 out of 5 by from worked well for the price worked well for the price
Date published: 2016-12-09
Rated 4 out of 5 by from Great product, needs slight improvement This is a sponge neoprene underlayment and appears to be very well made. It comes with a plastic flap on one edge and adhesive tape on the other. The flap and tape are great for situations where you need a vapor barrier (such as over concrete) but it's handy to have regardless to keep your seams tight. There are a couple down sides though: 1) It comes rolled up the wrong way so that when you unroll it the up side is facing down. A minor problem but a bit of a pain. 2) It does not unroll in a nice straight line but rather a slightly curved arc. Don't try to straighten it out or you'll create puckers and bumps. Just go with the flow and be sure to allow about 2" of material to bend up the wall so you can trim it later. 3) Some rolls have splices in the material. Instead of butt joining the splices they overlapped them. I had to cut out all their splices so i could butt them properly. Even their instructions say not to lap the joints! 4) The paper backing on the adhesive tape can be a little difficult to remove. It takes some patience to get an edge started so you can strip it off to expose the sticky tape. Aside from the above, a great product that does what it's supposed to do.
Date published: 2011-11-29
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