DensGlass® Sheathing

Product Detail

DensGlass® Sheathing offers unmatched protection and versatility for your construction needs. It features a treated, water-resistant core and a tough fiberglass mat surface, topped off with a distinguishing gold finish. Ideal for exterior walls, ceilings, and soffits, the distinctive GOLD color of DensGlass® Sheathing is more than just visually appealing – it’s a testament to over 35 years of unparalleled performance and trust in the market.

DensGlass® Sheathing thrives under brick, stone, stucco, siding and EIFS, expertly safeguarding your structure from moisture, both during and after construction. Whether you need it for fire-rated or non-fire-rated building assemblies, its superior durability adds undisputed performance. Part of our esteemed Dens® Suite of products, DensGlass® Sheathing is one of our high-performing fiberglass mat gypsum panels, created to meet all your wall, roof, ceiling, and floor project requirements.

The Dens® Suite of products proudly upholds our golden heritage of being the first to create a fiberglass mat board, and an unwavering innovator of strength and moisture-resistant solutions for over three decades. Choose Dens® Suite for imaginative solutions to your building challenges.

FEATURES AND BENEFITS

Weather-Resistant: Engineered to resist delamination and deterioration, even with up to 12 months of normal weather exposure during construction.
Mold-Resistant: Rated a perfect 10 on the ASTM D3273 test for mold resistance, providing peace of mind even in humid or moisture-prone environments.¹
Fire-Resistant: Constructed with noncombustible materials to meet stringent ASTM E136 and CAN/ULC S114 standards.
Dimensional Stability: Maintains a flat, even surface, ensuring no warping, rippling, or sagging, delivering a smooth substrate for various applications.
Reliable and Established: Tested and proven behind a range of cladding systems, including EIFS, brick veneer, stucco, wood siding, and vinyl siding. Ideal for both warm and cold climate zones.

Product Specifications

PERFORMANCE ATTRIBUTES

R Value	°F•ft2•hr/BTU (m2•K/W): .56 (0.099)³
Humidified Deflection	<2/8″ (6 mm)^2,4
ASTM Type	ASTM C1396; ASTM C1629; ASTM C473; ASTM E136; ASTM E84
Flame Spread & Smoke Development	15 & 0
Mold Resistance	(10/10)

PHYSICAL PROPERTIES

Length	standard: 8′ (2440 mm), 9′ (2743 mm), 10′ (3048 mm), ± 1/4″ (6 mm)
Width	Nominal: 4′ (1219 mm) ± 1/8″ (3 mm)
Thickness	1/2” (12.7 mm)
Weight	lbs/sq. ft. nominal (kg/m²): 1.9 (9)
Edge	Square

PERFORMANCE ATTRIBUTES

R Value	°F•ft2•hr/BTU (m2•K/W): .67 (0.118)³
Humidified Deflection	<1/8″ (3 mm)^2,4
ASTM Type	ASTM C1396; ASTM C1629; ASTM C473; ASTM E136; ASTM E84
Flame Spread & Smoke Development	15 & 0
Mold Resistance	(10/10)

PHYSICAL PROPERTIES

Length	standard: 8′ (2440 mm), 9′ (2743 mm), 10′ (3048 mm), ± 1/4″ (6 mm)
Width	Nominal: 4′ (1219 mm) ± 1/8″ (3 mm)
Thickness	5/8” (15.0 mm)
Weight	lbs/sq. ft. nominal (kg/m²): 2.5 (12)
Edge	Square

¹The score of 10 in the ASTM D3273 test, indicates no mold growth in a 4-week controlled laboratory test. The mold resistance of any building product when used in actual job site conditions may not produce the same results as were achieved in the controlled, laboratory setting. No material can be considered mold proof. For additional information concerning mold resistance, see www.buildgp.com/safetyinfo. When properly used with good design, handling and construction practices, DensGlass® Sheathing provides increased mold and moisture resistance compared to standard paper-faced wallboard products. However, the product is not intended for immersion in water or prolonged exposure to moisture. As with any building material, avoiding water exposure during handling, storage and installation, and after installation is complete, is the best way to avoid the formation of mold or mildew.

²Tested in accordance with ASTM C473

³Tested in accordance with ASTM C518 (heat flow meter)

⁴Specified values per ASTM C1177