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Fortifiber Aquabar “B” 500 Sq/Ft


For flooring, we recommend adding approximately 10% to the total square foot to account for waste.

Aquabar “B” is a hardwood and tile underlayment that works as an effective moisture vapor retarder in a wide variety of interior applications. Ideal for use beneath wood flooring and behind or below tile and stone substrates.

Aquabar “B” is a hardwood floor and tile underlayment that protects against moisture vapor related problems. It helps to eliminate bucking, cupping or cracking below wood flooring and also minimizes dust and noise. Also used as a membrane on walls, countertops or residential showers.

Consisting of two layers of kraft paper laminated with asphalt, Aquabar “B” is a non-reinforced 30/30/30 duplex type Grade “B” paper.

  • High moisture resistance
  • Low vapor permeance
  • 30/30/30 construction
  • Clean & easy installation
  • Size: 36″ x 167 LF (500 sq. ft.)

Mill-Direct Pricing
Puts More Money In Your Pocket

We can offer our customers the best prices in DC because we buy our products mill-direct, and pass those savings on to you. By sourcing our products directly from the mill, we cut out the middleman and save our valued customers time and money.

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