FFBI facing is a natural kraft paper laminated with lightweight aluminum foil. The kraft side is coated with a thermoplastic asphalt to bond the insulation to the facing. It has a folded tab to provide stapling flanges and the uncoated side can be printed with a logo.

Johns Manville FFBI Facing is manufactured using natural kraft paper laminated with 0.00025 lightweight aluminum foil for improved permeance compared to plain kraft facing. FFBI facing is coated with a thermoplastic asphalt coating on one side that is used to bond fiberglass insulation to the facing in a subsequent manufacturing process. In addition, FFBI facing is manufactured with a folded tab to provide stapling flanges for installation. As an added benefit, the facing’s uncoated side can be printed with the Original Equipment Manufacturer’s logo.

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