For Professional Use Only. DuPont™ ArmorBoard Plus Fire-Rated (FR) Structural Sheathing Returns are a 1/2” Magnesium Oxide (MgO) board utilized in punched opening applications, or where field returns vary from standard provided sizes. ArmorBoard Plus FR Structural Sheathing Returns offer a rapid plane transition to the structural surface while providing fire, air, and water-resistant barrier surfacing.

ArmorBoard Plus FR Structural Sheathing Returns come coated with a factory-applied, high quality air and water-resistive barrier on the exterior sheathing layer.

Features

• Fire-Resistant: Can be used in fire-rated assemblies as required.
• Air and Water-Resistant: Passes ASTM E331 and ASTM E283 as part of a water and air barrier assembly, respectively.
• Saves Labor Time and Costs: Precision cut in the factory to help reduce installation time around punched openings.