Model # 70-195

Internet #202592567

Store SKU #495804

Store SO SKU #1000894560

Fortifiber 500 sq. ft. Aquabar "B" Tile Underlayment Roll
0075378701958

Fortifiber

500 sq. ft. Aquabar "B" Tile Underlayment Roll

  • Helps increase the life and appearance of your flooring
  • Protects against moisture vapor
  • For use under tile and wood
$0.05 /sq. ft.
Covers 500.0 sq. ft.
$22.97 /roll

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Product Overview

Aquabar "B" floor and tile underlayment is an extremely effective moisture vapor retarder for use in a variety of interior construction applications. Consisting of two layers of Kraft paper laminated with asphalt, Aquabar "B" is a non-reinforced 30/30/30 duplex type Grade "B" paper. In the battle against interior moisture damage, the best defense is a strong offense. When you block moisture vapor from creeping underneath finish materials or reaching moisture sensitive substrates, you help increase the useful life and appearance of surface finishes. To help win the battle, the Fortifiber Building Systems Group offers Aquabar "B" as inexpensive insurance to reduce moisture-related problems.

  • Ideal underlayment for interior installations of: ceramic, porcelain or stone over cement board, plywood or concrete; and, finished or unfinished wood floors over plywood or concrete
  • Most commonly used beneath wood flooring, ceramic tile and stone veneer or as a membrane on walls, counter tops, and residential showers
  • Sub-floor barrier slows moisture migration and helps prevent buckling, cupping, and cracking
  • An extremely effective moisture vapor retarder for use in a variety of interior construction applications
  • Acts as a slipsheet to minimize dust and reduce noise
  • Meets CA01350 indoor air quality standards
  • 500 sq. ft. roll measuring 3 ft. x 167 ft.
  • Note: Product may vary by store.

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Customer Questions & Answers

Can this be used with wood laminate flooring?

basically it's all in the question, we are planning on putting down some wood laminate flooring and from everything I can tell this would be suitable for it, or am I mistaken? We would join the strips with some aluminum tape to make sure there are no gaps between the strips. Any advice would be greatly appreciated thank you
Asked by: Debarto
Laminate flooring manufacturers usually require a cushioning pad under their floating flooring to transition subfloor irregularities, stop moisture vapor and/or deaden sound. Aquabar is not a pad, neither is roofing felt. Aquabar is a Vapor retarder which will not trap moisture for use under nail down wood floors.
Answered by: stickman
Date published: 2016-11-10

Can I put down multiple layers of this underlayment between plywood and nailed-down hardwood?

For added padding and soundproofing, can I put down multiple layers of this underlayment between plywood and nailed-down hardwood (3/4" red oak)? Thank you
Asked by: dkra
Why?
Answered by: Docktore
Date published: 2016-11-10

Can I use this as a moisture barrier in basement install as long as I add a cushion underlayment. Im putting down 8 mm walnut plateau .

Asked by: MrShorts
Absolutely not.
Answered by: Docktore
Date published: 2017-06-20

is this suitable for use over crawl space?

I am using it over 3/4" T&G OSB and will be installing 3/4" hickory over top. Don't really want to use #15 felt paper, will this work over a crawl space?
Asked by: abugarcias
It will work great on top of the wood subfloor when nailed down. The manufaturer's installation guidelines on their website, recommends installing their Moistop Ultra 6 on the ground in a crawl space before installing Aquabar over the subfloor for more vapor protection.
Answered by: stickman
Date published: 2016-05-07
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Customer Reviews

500 sq. ft. Aquabar "B" Tile Underlayment Roll is rated 4.8 out of 5 by 69.
Rated 5 out of 5 by from We used the Aquabar beneath the hardwood floor we were... We used the Aquabar beneath the hardwood floor we were instally. The Aquabar worked perfectly. Easy to cut and install.
Date published: 2017-06-13
Rated 5 out of 5 by from Fortifiber 500 sq. ft. Aquabar "B" Tile Underlayment Roll Very easy to work with. Rolls out straight, lays flat, great markings for aid in the overlap, no issues whatsoever in its usage. A tar smell is faintly noticeable after leaving the area and returning. But I have no doubt once the floor is complete the smell will be gone. Seems to be a great product overall, highly recommended! The only con I have is that it isn't stocked locally in the store. But on the bright side, HD was very fast in shipping and it arrived in 3 days instead of the week to 10 days they estimated! Don't hesitate, it's a great product, that I'm sure will perform as well as it installed. FYI, I used this as a vapor retarder under a new retro hardwood floor.
Date published: 2017-04-07
Rated 2 out of 5 by from We have not used this product yet, but based on the delivered condition I would not suggest purch... We have not used this product yet, but based on the delivered condition I would not suggest purchasing again for Home Depot online. The material came to us in a plastic bag. The bag and the material inside was covered in black dust. One roll was torn and bent on the ends. I assume that both rolls sat in a Home Depot warehouse for a long time, allowing it to collect dust and get damaged. I contacted Aquabar B manufacture and they indicated that they did not ship the material in plastic bags and that Home Depot must have added the bags and put in storage.
Date published: 2017-01-04
Rated 5 out of 5 by from I tore up laminate, and left laminate under layment. I did this to leave a little flex between th... I tore up laminate, and left laminate under layment. I did this to leave a little flex between the plywood and the porcelean. I put this on top of the old moisture barrier. I tiled 300 foot on top of this paper. The next day I grouted cleaning up as I went, so my grout lines didn't crack. I didn't want to kneel on my grout lines twice, since this is really a floating floor. I let set for 24 hours. Heavy furniture, high traffic. One month later, looks great!
Date published: 2017-03-17
Rated 5 out of 5 by from Makes laying laminate a breeze Unrolls easy and lays down flat. Taping the sections together is also very easy. Masking tape easily lifted off when I needed to make an adjustment. The product doesn't tear when taping, if you need to adjust the tape or when walking on it. The price is extremely reasonable and is used by professionals. I highly recommend Aquabar.
Date published: 2017-01-08
Rated 5 out of 5 by from This was a great alternative to the typical asphalt felt... This was a great alternative to the typical asphalt felt paper for hardwood underlayment. The best way to describe it is a little tar sandwiched between two layers of construction paper. It did not have a tar smell when going down and felt thick and durable. Definitely will use this again.
Date published: 2017-04-25
Rated 5 out of 5 by from Have used this on several oak floor installs. It's the... Have used this on several oak floor installs. It's the only thing I'd use. Rolls out flat w/o wrinkles, stays put, doesn't tear. Retards moisture migration from below to ensure wood stays flat and tight. Low/no odor. Clean. Good slip properties, ie easy to insert next board.
Date published: 2017-04-18
Rated 5 out of 5 by from Great stuff, put it down by the front door, but didn't do the laminate floor yet. Had a very rain... Great stuff, put it down by the front door, but didn't do the laminate floor yet. Had a very rainy day,electric guy coming in and out, left a puddle of water by front door. I looked under,not a drop of water, on MDF board.
Date published: 2017-05-16
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