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Note: Code-specific product application is subject to the approval of the Code Official within the jurisdiction.

Application Environment
Finish
Reference
USG Product Options
ASTM
Conventional Finish Systems Stucco, brick veneer, or stone USG USG Sheetrock® Brand Firecode® X Gypsum Sheathing Panels
USG Securock® Brand Glass-Mat Sheathing Panels
USG Durock® Brand Cement Board
C1396
C1278
C1177
C1325
Exterior Insulated Finish Systems (EIFS) Mechanically attached USG USG Sheetrock® Brand Firecode® X Gypsum Sheathing Panels
USG Securock® Brand Glass-Mat Sheathing Panels
USG Durock® Brand Cement Board
C1396
C1278
C1177
C1325
Exterior Insulated Finish Systems (EIFS) Adhesively attached USG USG Securock® Brand Glass-Mat Sheathing Panels
USG Durock® Brand Cement Board
C1278
C1177
C1325
Exterior Soffit Synthetic coating USG Fiberock Brand Aqua-Tough Interior Panels
USG Securock® Brand Glass-Mat Sheathing Panels
USG Durock® Brand Cement Board
C1278
C1278
C1177
C1325
Extreme Exposure or Weather
Tile or synthetic coating USG USG Durock® Brand Cement Board C1325
Enclosed Swimming Pools Tile or synthetic coating USG USG Durock® Brand Cement Board C1325

Industry References

Gypsum Association - GA- 216-2007

International Residential Code - IRC 2006 edition

International Building Code/IBC - 2006 edition

Tile Council of North America - Handbook for Ceramic, Glass, and Stone Tile Installation 2014 edition

Application Environment Definitions (TCNA Handbook)

*Limited Water Exposure Areas
Tile surfaces that are subjected to moisture or liquids but do not become soaked or saturated due to the system design or the time exposure. Examples include: residential bathroom floors and foyers, residential bathroom vertical surfaces including tub surrounds without a shower head, and kitchen countertops.

**Wet Area Definition
Tile surfaces that are either soaked, saturated, or regularly and frequently subjected to moisture or liquids (usually water), such as gang showers, tub enclosures, showers, laundry rooms, saunas, steam rooms, swimming pools, hot tubs, commercial kitchen and exterior areas.

Service Requirements (TCNA Handbook)

Commercial Construction Dry or Limited Water Exposure
- e.g., dairies, breweries, kitchens.

Commercial Construction-Wet
- e.g., gang showers, tubs, showers, laundries.

Residential and Light Construction-Dry or Limited Water Exposure
- e.g., kitchens and toilet rooms, commercial dry area interiors, and decoration.

Residential and Light Construction-Wet
- e.g., tub enclosures and showers.