ToughRock® Fireguard® and Fireguard C® Gypsum Boards
ToughRock® Fireguard® and Fireguard C® gypsum boards are Type X (as defined in ASTM C 1396), interior drywall products for wall and ceiling construction, and classified for fire resistance by Underwriters Laboratories LLC (UL). Both are designed for direct mechanical attachment to wood or metal framing for use in building assemblies with a designated fire-resistant rating.
The noncombustible (as described and tested in accordance with ASTM E 136), dimensionally stable gypsum core has been reinforced with glass fibers, increasing its strength and its resistance to the passage of heat.
The surfaces of both faces and on the long edges are 100% recycled paper. The front face paper is ivory; the back face paper is grey. The long edges are tapered and the ends are square cut.
These products are GREENGUARD Indoor Air Quality Certified® and GREENGUARD Children & Schoolssm Certified for low emissions of volatile organic compounds (VOCs).
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Q:
What is the fire rating of ToughRock® Fireguard® Gypsum Board?
A:
There is not a fire rating on an individual board. The fire rating is based on an
entire assembly (studs, board, fasteners, etc.) being tested together. Please consult
the Gypsum Association GA-600 Fire Design Manual or UL for specifics on a particular
fire rated assembly
Q:
What should we do if the gypsum board gets wet?
A:
According to the Gypsum Association publication GA-231, gypsum board should not
be allowed to get wet; it should be covered if stored outside. However, there are
situations where the board could get wet in transportation/storage or installed
in-place. If the board gets wet in an installed in-place situation, first remove
the sources of moisture. Lay the board on a flat surface and allow it to dry out
thoroughly. Once the board is dry, examine it for paper-to-core bond failure, mold
and mildew growth, nail pops and sag (in the case of ceilings). Paper-to-core bond
failure and board sag are irreversible damages and the board should be replaced.
Mold can be cleaned using vinegar and water solution or alternates (use care when
using bleach or chlorine solutions). For nail pops, place a fastener an inch above
or below any popped-up nail.
Q:
Should gypsum board be installed vertically or horizontally?
A:
While gypsum boards are stronger in one direction, they may be installed either
vertically or horizontally on wood or steel studs. If the boards are to be used
in a fire rated assembly then use the board orientation that is stated in your specific
rated assembly.
Q:
How often is a control joint required?
A:
The requirement for ceilings and walls is the same. A control joint should be installed
every 30 feet when there is not perimeter relief. When there is perimeter relief,
control joints can be installed every 50 feet.
