Specification

Manufacturer
Georgia-Pacific Gypsum Georgia-Pacific Canada
133 Peachtree Street 2180 Meadowvale Boulevard, Suite 200
Atlanta, GA 30303 Mississauga, ON L5N 5S3
Technical Service Hotline: [phone]
Description
ToughRock
®
Fireguard 45
®
Gypsum Board has a noncombustible
(per ASTM E136), dimensionally stable, gypsum core. The core is specially
formulated, increasing the strength and resistance to the passage of heat. The
surfacings on both facings and on the long edges are 100% recycled paper. The
front facing (side to be finished) and the long edges are an ivory color; the back
facing paper is gray. The ends are square cut, smooth finished with no paper facing.
Georgia-Pacific ToughRock
®
Gypsum Board products are GREENGUARD and
GREENGUARD Gold Certified for low emissions of volatile organic compounds
(VOCs). They are listed in CHPS
®
High Performance Product Database for low
emitting products.
Primary Uses
The 1/2( (12.7 mm) ToughRock Fireguard 45 Gypsum Board is a wall or ceiling
covering material for use in new building construction or renovation. It is designed
for direct attachment to wood or steel framing.
This product is 1/2( (12.7 mm) Type X as defined by ASTM C1396, gypsum board
that provides not less than 45-minute fire resistance rating for boards 1/2( (12.7 mm)
thick. It is used in select fire-rated wood-framed wall assemblies to help protect
framing members from the spread of fire. With joints covered, ToughRock Fireguard 45
Gypsum Board will resist the passage of smoke. See the UL Online Certification
Directory for information on fire-rated assemblies where ToughRock Fireguard 45
Gypsum Board is approved for use in the assembly.
It has also been formulated to perform like a gypsum ceiling board where improved
sag resistance is desired, per ASTM C1396, section 12. It can be used on ceilings
with 24( (610 mm) o.c. frame spacing when a water based texture is applied.
Always seal board with a high quality latex primer before applying texture.
Insulation should not exceed 2.2 lbs/sf. (9.9 km/m2).
ToughRock Fireguard 45 Gypsum Board is manufactured with an ivory paper facing
designed to receive joint treatment, paint, wall covering, textured coatings or other
finish treatment.
Limitations
• ToughRock Fireguard 45 Gypsum Board is a non-structural product and should
not be used as a nailing base to support heavy wall-mounted objects.
• It is intended for interior applications only and it must be kept dry and not
used where exposure to moisture is extreme or continuous.
• Do not use ToughRock Fireguard 45 Gypsum Board where there is prolonged
exposure to temperatures exceeding 125°F (52°C) and/or continuous exposure
to extreme humidity; e.g. located adjacent to wood burning stoves, heating
appliances, steam rooms, showers, gang shower rooms and swimming pools.
• Consult water-based textures manufacturer’s literature if they are to be used.
Applicable Standards
Manufactured to meet ASTM C1396 Sections 5 and 12.
Building Code Conformity
ToughRock Fireguard 45 Gypsum Board conforms to requirements of the current
IBC, IRC, and NBCC building codes for its intended use.
Sizes
Thickness, nominal 1/2( (12.7 mm)
Widths, nominal 48( (1220 mm); 54( (1372 mm)
Lengths, standard 8* (2440 mm) to 16* (4880 mm)
Edges
1/2( (12.7 mm) tapered edges.
Supplemental Materials
Fasteners: Nails or screws.
Joint System: Tape, bedding compound and topping compound.
Trims: Corner bead, edge/casing bead, control joints, floor/ceiling runners and
channels.
Walls and ceiling textures.
Sealants.
Technical Data
Flame spread rating of 15 and smoke developed 0, when tested in accordance
with ASTM E84. The core is noncombustible when tested in accordance with
ASTM E136.
The 1/2( ToughRock Fireguard 45 is UL classified, Type FG.
Fire Resistance Ratings
ToughRock Fireguard 45 Gypsum Board meets the criteria for 1/2( (12.7 mm) Type X
special fire resistance, as defined in ASTM C1396. ToughRock Fireguard 45 Gypsum
Board is certified for fire-rated assemblies by UL LLC. Consult UL Fire Resistance
Directory for specific assemblies where ToughRock Fireguard 45 Gypsum Board is
approved for use.
Sound Control
ToughRock Fireguard 45 Gypsum Board can achieve designated Sound
Transmission Class (STC) values when used in properly designed constructions.
Sound rated assemblies require sealing at top, bottom, intersections and other
locations where sound leaks may develop. See the Gypsum Association Publication
GA-600, Fire Resistance Design Manual, for sample sound isolation construction.
Application Standards
ToughRock Fireguard 45 Gypsum Board may be applied according to the Gypsum
Association Publication GA-216 or ASTM C840 for non-fire rated construction.
For fire resistance construction application regarding board orientation, fastener
type and spacing shall be consistent with the tested construction details. These
details are published in the UL Online Certification Directory.
Handling and Use–Caution
This product may contain fiberglass which may cause skin irritation. Dust and
fibers produced during the handling and installation of the product may cause skin,
eye and respiratory tract irritation. Avoid breathing dust and minimize contact with
skin and eyes. Wear long sleeve shirts, long pants and eye protection. Always
maintain adequate ventilation. Use a dust mask or NIOSH/MSHA approved
respirator as appropriate in dusty or poorly ventilated areas.
Material Safety Data Sheet
Material Safety Data Sheet (MSDS) is available upon request or online at
www.buildgp.com/safetyinfo.
Technical Service Hotline [phone] or
www.gpgypsum.com
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