ProRoc 5/8" (15.9mm) Sheathing Treated Core SE


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For exterior wall applications where exposure conditions may be severe.

A water-repellent gypsum sheathing for application to the outside of building framing members, and serves as the base for the exterior wall finish. Used as attachments to the outside of exterior wall framing as a water-resistant underlayment for various siding materials.

Provides the same base plus a specially formulated core for use in fire-resistive designs.

For detailed description, please see Product Data and Submittal Sheet
Thickness: 5/8" (15.9mm) ProRoc® Sheathing Treated Core Type X
Lengths: Contact the nearest Sales Office for stocked lengths available.
Width: 4'' (1220mm)
Weight (Approx.): 5/8"(15.9mm)
ProRoc® Sheathing Treated Core Type X – 11.0 kg/m2 (2.25 lb/ft2)
Core: ProRoc® Sheathing Treated Core Type X – gypsum (noncombustible) with moisture resistant core and proprietary formulation for fire resistance performance.
Edge: Square, paper bound – factory finished
End: Square – factory cut
Applicable Standards: meets ASTM C 1396

For complete Technical Data, please see Product Data and Submittal Sheet

Sheathing Treated Core

CertainTeed Regular Gypsum Board accepts most types of paints, texture and wall covering materials. The surface shall be primed and sealed with a full-bodied latex primer before applying a final decorative material. This will equalize the suction between the joint compounds and the paper surface. For best painting results, all surfaces, including joint compound, should be clean, dust-free and not glossy. If glossy paints are used, a thin skim coat of compound over the entire surface, Level 5 finish, is recommended to reduce highlighting or joint photographing. This method is also recommended for areas of critical side lighting of natural or artificial light sources. A sealer application under wallpaper or other wall covering is also recommended so the board surface will not be damaged if the covering is subsequently removed during redecorating. Joint treatment must be thoroughly dry before proceeding with primer-sealer application and final decoration.

Applicable Standards and References
  • ASTM C840
  • ASTM C1280
  • GA-216
  • GA-253
Consult the GA-600 Fire Resistance Design Manual or UL Fire Resistance Directory, Volume 1 for specific information regarding the construction of fire resistance rated assemblies.
For complete installation instructions, please see ProRoc Install Like the Pros, Gypsum Board Installation Guide.

Please see attached document for complete warranty
CertainTeed is committed to resource conservation:
  • The face and back paper used for our gypsum board consists of 100% recycled paper.
  • Synthetic or “by-product” gypsum from the desulphurization of flue gases at coal-fired power plants is used where sources are available. Currently three manufacturing plants—Carrollton, Kentucky, Moundsville, West Virginia and Toronto, Ontario—use 100% synthetic gypsum. The total recycled content for these synthetic gypsum plants is 96%.
  • In-plant scrap is recycled back into the process. Our 14 gypsum board manufacturing locations provide regional material coverage throughout North America.
  • Although LEED rating systems do not currently address emissions for all building materials and their effects on indoor air quality, finished CertainTeed gypsum board products have no reportable VOCs and will not affect indoor air quality.

For complete information, please see the attached link
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