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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
Dry Paint USG USG Sheetrock® Brand Gypsum Panels
USG Sheetrock® Brand Mold Tough® Gypsum Panels
USG Fiberock® Aqua-Tough™ Interior Panels
C1396
C1396
C1278
Tile IBC 2509.2
GA-216
USG Sheetrock® Brand Gypsum Panels
USG Sheetrock® Brand Mold Tough® Gypsum Panels
USG Fiberock® Aqua-Tough™ Interior Panels
USG Durock® Brand Cement Board
C1396
C1396
C1278
C1325
Limited Water Exposure* Paint USG USG Sheetrock® Brand Mold Tough® Gypsum Panels
USG Fiberock® Aqua-Tough™ Interior Panels
C1396
C1278
No direct water exposure or continuous high humidity Tile IBC 2509.3
IRC R702.3.8.1
GA-216
TCNA
USG Sheetrock® Brand Mold Tough® Gypsum Panels
USG Fiberock® Aqua-Tough™ Interior Panels
USG Durock® Brand Cement Board
C1396
C1278
C1325
Adjacent Tub and Shower Areas
- wall and ceiling panels
- (no direct water exposure or continuous high humidity)
Tile IBC 2509.2
IBC 2509.3
IRC R702.3.8.1
USG Sheetrock® Brand Mold Tough® Gypsum Panels
USG Fiberock® Aqua-Tough™ Interior Panels
USG Durock® Brand Cement Board
C1396
C1278
C1325
Water Closet Compartments
- wall tile substrate
- (includes toilet and urinals)
Tile IBC 2509.2 USG Fiberock® Aqua-Tough™ Interior Panels
USG Durock® Brand Cement Board
USG Sheetrock® Brand Mold Tough® Gypsum Panels
C1278
C1325
C1396
Wet** Coating USG USG Durock® Brand Cement Board C1325
Tub and Shower Surround
- tub and shower unit insert
Insert USG USG Sheetrock® Brand Mold Tough® Gypsum Panels
USG Fiberock® Aqua-Tough™ Interior Panels
C1396
C1278
Tub and Shower Surround
- wall tile substrate
Tile

USG
TCNA

USG Fiberock® Aqua-Tough™ Interior Panels
(2007 TCNA Handbook Recognition)
C1278
IBC 2509.2 USG Durock® Brand Cement Board C1325
IRC R702.4.2
IRC R702.3.8
USG Durock® Brand Cement Board
USG Fiberock® Aqua-Tough™ Interior Panels
(2007 supplement to the 2006 IRC)
C1325
C1278
Saunas, Steam Rooms, Hot Tubs, Gang Showers, or Indoor Pools Tile 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.