AWCI’s Member Products Catalog - 2020 - Con2

GLASS-MAT FACED
DRYWALL PRODUCTS

BISON BOARDTM
WEATHER DEFENSE®
EXTERIOR SHEATHING
TYPE X*
Moisture-, mold- and fire-resistant
exterior wall sheathing with enhanced
fiberglass-mat facings to provide extended
weatherability and outdoor exposure
protection during and after construction.
It is an ideal substrate behind brick,
siding, EIFS, stucco and other permanent
claddings.

BISON BOARDTM
WEATHER DEFENSE®
INTERIOR TYPE X*

BISON BOARDTM
WEATHER DEFENSE®
SHAFTLINER TYPE X*

High-performance interior drywall with a
special wet-area board formulation, treated
core and fiberglass-mat facer technology,
designed to provide exceptional moisture,
mold and fire protection for interior
applications and exterior soffits. Its
innovative, off-white face panel and tapered
edges allow for superior indoor finishing
and decorating results.

Designed for use in lining elevator shafts,
ventilation shafts, stairwells, for area
separation walls in residential housing,
and for other interior building applications
requiring fire resistance.

Standards and Codes
Standards and Codes

Standards
andand
Codes
Standards
Codes

Formulated to perform in accordance with
ASTM C1177/C1177M, Type X and Florida
State Report FL15570. Meets properties
of ASTM C1396/C1396M, Section 9.
UL Type LGFC-WD.

Formulated to perform in accordance with
ASTM C1658/C1658M, Section 7, Type X
and ASTM D3273 for mold resistance.
UL Type LGFC-WD.

Physical Characteristics
Physical Characteristcs
Long Edges: Square
Nominal Thickness: 1/2 in., 5/8 in.
Nominal Width: 4 ft.
Standard Length: 8 ft.
Nominal Weight: 2.5 lbs./ft.2
Asbestos free

Standards and Codes
Standards and Codes
Formulated to conform with ASTM C1658/
C1658M, Section 6, Type X and meets the
properties of ASTM C 1396, Section 6,
Gypsum Shaftliner Board and C 442,
Type X; Federal Specification** SS-L-30d,
Type IV, Grade X; and CAN/CSA-A82.27-M.
UL Type LGFCSL.

Physical Characteristics

Physical
Characteristcs
Physical
Characteristics

Physical Characteristcs

Long Edges: Tapered
Nominal Thickness: 1/2 in., 5/8 in.
Nominal Width: 4 ft.
Standard Length: 8, 10 and 12 ft.
Nominal Weight: 2.5 lbs./ft.2
Asbestos free and
GREENGUARD certified

Long Edges: Double beveled
Nominal Thickness: 1 in.
Nominal Width: 2 ft.
Standard Length: 8 ft. - 12 ft.
Nominal Weight: 4 lbs./ft.2
Asbestos free

Limitations: Weather Defense is not designed as a finished surface or for the direct application of textures, paints
or coatings. Weather Defense is not designed as a nailing base. Mechanical fastening should pass through Weather
Defense and fasten to the framing members. Do not immerse Weather Defense in water or subject to cascading water.
*Weather Defense provides extra resistance against the formation of mold, but no product may be considered "mold
proof." The most effective way to avoid the formation of mold and mildew in drywall products is to limit or avoid water
exposure during storage and construction, and after construction is complete. Used in combination with appropriate
design, handling, construction and installation practices, Weather Defense drywall can provide increased mold and
mildew resistance on its surface. ASTM D3273 is the "Standard Test Method for Resistance to Growth of Mold on the
Surface of Interior Coatings in an Environmental Chamber" and is performed under controlled laboratory conditions.
Actual storage, handling, construction and installation conditions may vary from the environment created in the
independent lab, and the use of the product in actual conditions may not replicate the ASTM results.
**The federal specification for gypsum board, SS-L-30d, was withdrawn in 1984. It is provided here for information only
and should not be referenced for new construction.

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AWCI’s Member Products Catalog - 2020

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