DensGlass Sheathing is Georgia-Pacific's fiberglass mat gypsum panel for exterior wall, ceiling and soffit substrates. The gypsum core is treated for water resistance and the panel is faced front and back with a fiberglass mat rather than paper, then finished with the gold-colored coating the product is recognized by on the jobsite.

Because there is no paper facing to feed mold or delaminate when it gets wet, the panel is used where a rigid substrate has to stand up to weather between dry-in and cladding. Georgia-Pacific rates it for up to 12 months of normal weather exposure during construction, and it serves as the base for air and water-resistive barrier systems applied in the field, whether fluid-applied, sheet or self-adhered.

Panels are cut by scoring and snapping and are screw-attached to steel or wood framing with corrosion-resistant fasteners, the same sequence as any gypsum sheathing. Joints are then treated with the barrier system or joint treatment specified for the assembly before brick, stone, stucco, EIFS, or siding goes on.

Key Features

• Treated, water-resistant gypsum core surfaced with fiberglass mats on both faces instead of paper
• Gold-colored primer coating on the face, the long-standing visual identifier of the DensGlass line
• Rated by the manufacturer for up to 12 months of normal weather exposure during construction without delamination or deterioration
• Scored 10 of 10 for mold resistance when tested to ASTM D3273 in a four-week laboratory test
• Manufactured to ASTM C1396 and ASTM C1629, with noncombustible core materials meeting ASTM E136
• Flame spread 15 and smoke developed 0 per ASTM E84
• Square edges and a flat, dimensionally stable face that resists warping, rippling and sagging
• Scores and snaps for cutting and screws to steel or wood framing like conventional gypsum sheathing

Applications

• Exterior wall sheathing on steel or wood stud framing
• Substrate behind brick and stone veneer, stucco, EIFS, wood and vinyl siding
• Exterior ceilings and soffits
• Rigid backing for fluid-applied, sheet or self-adhered air and water-resistive barriers
• Fire-rated and non-fire-rated wall assemblies where the assembly listing calls for this panel
• Commercial curtain wall and shaft-adjacent exterior construction

Product Details

• Brand: Georgia-Pacific
• Product Line: DensGlass
• Type: Fiberglass mat gypsum sheathing panel
• Core: Treated, water-resistant gypsum
• Facing: Fiberglass mat, front and back
• Color: Yellow / gold primer coating
• Edge: Square
• Nominal Weight: 2.5 lbs. per sq. ft.

Specifications

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