Specification

American Gypsum
3811 Turtle Creek Blvd., #1200
Dallas, TX 75219
214-530-5500
www.americangypsum.com
Technical Information
1-800-545-6302 ext. 5607
Submittal 09 29 00
ClassicRoc
®
gypsum wallboard is the preferred product in the industry due to its consistently high quality standards. The wallboard
panels consist of a fire-resistant gypsum core that is encased in 100% recycled natural-finish paper on the face side and sturdy liner
paper on the back side. The face paper is folded around the long edges to reinforce and protect the core, with the ends being square-cut and finished smooth. Long
edges of the panels are tapered, allowing joints to be reinforced and concealed with a joint compound system.
ClassicRoc regular gypsum wallboard is available in a variety of thicknesses and lengths for standard construction uses.
American Gypsum products contain no asbestos and no detectable levels of formaldehyde.
DESCRIPTION
ClassicRoc gypsum wallboard has achieved UL Environment’s GREENGUARD GOLD Certification. GREENGUARD Certified pro-
ducts are scientifically proven to meet some of the world’s most rigorous, third-party chemical emissions standards, helping reduce
indoor air pollution and the risk of chemical exposure while aiding in the creation of healthier indoor environments.
For more information, visit www.ul.com/gg.
GREENGUARD CERTIFIED
FROM UL ENVIRONMENT
ClassicRoc gypsum wallboard is used as a covering material for walls or ceilings in new building construction or renovation work.
It is designed for direct attachment by screws, nails or adhesive to wood or metal framing and even existing surfaces.
1/2” - Recommended for single-layer application in residential construction.
3/8” - A lightweight gypsum panel, principally used in double-layered wall systems over wood framing, and for repair and remodeling projects.
1/4” - A lightweight and low-cost gypsum panel for use as a base layer to improve sound control in double-layer steel and wood stud walls. Also used over old walls
and ceiling surfaces, and is an ideal product for forming curved surfaces with short radii.
BASIC USES
Gypsum board does not generate or support the growth of mold when it is properly transported, stored, handled, installed, and
maintained. However, mold spores are present everywhere and when conditions are favorable; mold can grow on practically any
surface. GYPSUM BOARD MUST BE KEPT DRY to prevent the growth of mold.
Gypsum board must be stored in an area that protects it from adverse weather conditions, condensation, and other forms of moisture. Job site conditions that can
expose gypsum board to water or moisture must be avoided.
Gypsum board must be protected during transit with a weather-tight cover in good condition. Plastic shipping bags are intended to provide protection during transit
only and must be promptly removed upon arrival of the load. Failure to remove the shipping bag can increase the likelihood of developing conditions favorable to the
growth of mold.
STORAGE AND HANDLING
ClassicRoc gypsum wallboard is intended for interior applications only.
Avoid exposure to temperatures exceeding 125°F (52°C), e.g., located adjacent to wood burning stoves and or heating appliances.
Avoid exposure to excessive or continuous moisture before, during and after installation, e.g., swimming pools, saunas or steam rooms. Eliminate any sources of
moisture immediately.
ClassicRoc gypsum wallboard panels are a nonstructural product and should not be used as a nailing base.
Spacing of wall or ceiling framing should not exceed the recommendations below:
To prevent noticeable sag in ceilings, the weight of overlaid unsupported insulation should not exceed the following recommendations:
Insulation blankets or batts shall be recessed, with flanges attached or friction fitted to the sides of the studs or joists.
LIMITATIONS
MAXIMUM SPACING OF FRAMING (WOOD OR METAL)
SINGLE PLY
THICKNESS
APPLICATION
CEILINGS*
3/8”
1/2”
1/2”
Perpendicular to Framing
Parallel to Framing
Perpendicular to Framing
16” o/c
16” o/c
24” o/c
WALLS 3/8”
1/2”
Parallel or Perpendicular
Parallel or Perpendicular
16” o/c
24” o/c
FRAMING PRODUCT
PSF (LBS. PER S/F)
OF INSULATION
1.3 (6.3 kg/M
2
)
2.2 (10.7 kg/M
2
)
1/2”
1/2”
24” o/c
16” o/c
MAXIMUM FRAMING
O/C SPACING
*For Ceiling Applications - When using a hand or water-based texture for decoration, 1/2”
ClassicRoc gypsum wallboard is to be installed perpendicular to framing spaced no more
then 16”o/c. For framing spaced more then 16”o/c, American Gypsum’s 1/2” LightRoc
®
or
Interior Ceiling Board shall be specified.
ClassicRoc
Gypsum Wallboard
®
ClassicRoc
R
R
Made in the USA
Panel regular para interiores
®