ToughRock® Fireguard C® Soffit Board - product rendering panels are stacked ToughRock® Fireguard C® Soffit Board product rendering - detailed image of the tape which is vertical stipes that are brown, red, white, red, brown, gray, white
ToughRock® Fireguard C® Soffit Board - product rendering panels are stacked ToughRock® Fireguard C® Soffit Board product rendering - detailed image of the tape which is vertical stipes that are brown, red, white, red, brown, gray, white

ToughRock® Fireguard C® Soffit Board

  • A UL Classified gypsum board and can be used in a variety of fire-rated wood and steel framed assemblies.
  • Used in multi-family residential, commercial, institutional or industrial buildings as exterior ceilings or soffits that are protected from direct exposure to water.
  • The product is surfaced on both faces and long edges with tan-colored 100% recycled paper.
  • The ends are square cut, smooth finished with no paper facing.

Product Details

ToughRock® Fireguard C® Soffit Board is designed to be used as exterior ceilings (called soffits) that are protected from direct exposure to water. It resists sag in protected exterior ceiling constructions such as carports, garages, open porches, canopies, and walkways. ToughRock Fireguard C Soffit Board consists of a noncombustible (as described and tested in accordance with ASTM E136), dimensionally stable gypsum core and is suitable for multi-family residential, commercial, institutional, and industrial buildings. The 5/8″ (15.9 mm) ToughRock Fireguard C Soffit Board is UL classified Type TG-C and ULC classified Type C.

FEATURES AND BENEFITS

  • Fire-Rated Performance: ToughRock® Fireguard C® is UL Classified for fire-rated wood and steel-framed assemblies, ensuring superior fire resistance based on ASTM E84 and E136 standards.
  • Versatile Applications: Ideal for soffits and exterior ceilings in carports, garages, porches, canopies, and walkways, as long as they’re protected from direct water exposure.
  • Certified Low VOCs: GREENGUARD and GREENGUARD Gold Certified for minimal emissions, creating a safe and sustainable building environment.

Product Specifications

PERFORMANCE ATTRIBUTES

R Valueft2•°F•hr/BTU (m2•K/W): 0.56 est. (0.10)2
Humidified Deflection4/8″ (12 mm)
ASTM TypeASTM C1396; ASTM C1629; ASTM C473; ASTM E136; ASTM E84
Flame Spread & Smoke Development15 & 0 (product dependent)
Mold Resistance (only include for Dens® and MMR products)No (10/10)
Water Absorption for Dens® and MMR products5%

PHYSICAL PROPERTIES

Lengthstandard: 8′ (2440 mm) to 12′ (3658 mm) ± 1/4( (6.4 mm)
Widthnominal: 4′ (1220 mm) ± 3/32″ (2.4 mm)
Thicknessnominal inches: 5/8″ (15.9 mm) ± 1/64″ (0.4 mm)
Weightlbs./sq. ft., nominal (kg/m²): 2.2 (10.7)2
EdgeTapered

CERTIFICATIONS

GreenGuard Gold logo - green with white textUL Classified logo - black circle and white textULC Listed logo - black circle

Certifications may vary by production location, please contact local representative for more information.

Consumer Product Safety Act (CPSA) – For CPSA General Certificate of Conformity, please click here.

1 Represents approximate weight for design and shipping purposes. Actual weight may vary depending on manufacturing location and other factors. 

2 Per Gypsum Association document GA-235.

*FIRE SAFETY CAUTION – Passing a fire test in a controlled laboratory setting and/or certifying or labeling a product as having a one-hour, two-hour, or any other fire resistance or protection rating and, therefore, as acceptable for use in certain fire rated assemblies/systems, does not mean that either a particular assembly/system incorporating the product, or any given piece of the product itself, will necessarily provide one-hour fire resistance, two-hour fire resistance, or any other specified fire resistance or protection in an actual fire. In the event of an actual fire, you should immediately take any and all actions necessary for your safety and the safety of others without regard for any fire rating of any product or assembly/system. For additional information concerning fire ratings and fire safety, go to www.buildgp.com/safetyinfo.

Resources

ToughRock® Fire Resistant Gypsum Board - HPD
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ToughRock ® Gypsum Board Wallworks Guide
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ToughRock Paper Faced Gypsym Safety Data Sheet
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Paper Faced Gypsum Panels Safety Data Sheet - Spanish
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Paper Faced Gypsum Panels Safety Data Sheet - French
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Gypsum Paper Faced Panels English Canada
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ToughRock® Fireguard C® Soffit Board Submittal
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ToughRock® - Technical Guide
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ToughRock® – Technical Guide (Español)
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ToughRock® Joint Systems Limited Warranty - Canada (English)
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ToughRock® Joint Systems Limited Warranty - USA (English)
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ToughRock® Limited Warranty - Canada (English)
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ToughRock®Limited Warranty - USA (Español)
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ToughRock®Limited Warranty - USA (English)
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ToughRock® Limited Warranty - Canada (Français)
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FAQs

Can ToughRock® Sheathing be used on exterior corridor protected ceilings and soffits?

Georgia-Pacific does not recommend using ToughRock® Sheathing for these applications. Instead, consider using ToughRock® Fireguard C® Soffit Board , DensArmor Plus® Type C, or DensGlass® Sheathing, depending on the fire rated design and are designed for soffit applications.

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Need Technical Help?

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