Description Aquabar B Flooring Underlayment 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 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. Roll Size 3’ x 167’ (500 Square Feet) Sub-floor barrier slows moisture migration and helps prevent buckling, cupping and cracking Ideal underlayment for interior installations of: ceramic, porcelain, or stone over cement board, plywood or concrete Ideal underlayment for finished or unfinished wood floors over plywood or concrete Meets CA01350 indoor air quality standards
