GA - 216
APPLICATION AND FINISHING OF GYPSUM PANEL PRODUCTS
|Publication Date:||1 January 2010|
Scope and General Provisions.
These are specifications for the application and finishing of gypsum panel products and related items and accessories to interior walls and ceilings and to exterior soffits.
These specifications do not cover the application of gypsum sheathing, gypsum lath, or gypsum base for veneer plaster.
NOTE 1: Refer to Application of Gypsum Sheathing, GA-253; Standard Specification for Installation of Interior Lathing and Furring, ASTM C 841; and Standard Specification for Application of Gypsum Base to Receive Gypsum Veneer Plaster, ASTM C 844, for the application of these materials.
Where fire resistance, smoke resistance, or sound control is required for systems using gypsum panel products, the applicable building code regulations shall be followed. System details for fire and sound rated systems are described in the Gypsum Association's Fire Resistance Design Manual, GA-600.
Gypsum panel products shall not be used where there will be direct exposure to water or continuous high humidity conditions. Such areas include but are not limited to saunas, steam rooms, gang shower rooms, and indoor pools.
Gypsum panel products shall not be used where they will be exposed to sustained temperatures of more than 125ºF (52ºC) for extended periods of time.
Where gypsum panel products are used in air handling systems, the surface temperature of the gypsum panel products shall be maintained above the air stream dew point temperature but not more than 125ºF (52ºC).
Attics or similar unconditioned spaces above gypsum panel product ceilings shall be ventilated by providing cross ventilation for all spaces between the roof and the top floor ceiling.