ASTM C1396-24 STANDARD SPECIFICATION FOR GYPSUM BOARD, 2024

The ASTM C1396-24 Standard Specification for Gypsum Board, available through 1 Exam Prep, is a 2024 edition recognized by the American Society for Testing and Materials (ASTM International). This specification defines performance requirements, dimensions, and material properties for various types of gypsum boards used in construction, including regular gypsum wallboard, moisture-resistant, fire-resistant, and type X products. It establishes criteria for core composition, edge configuration, flexural strength, and surface treatment applicable to wall, ceiling, and sheathing applications. The standard supports contractors preparing for licensing and building code compliance examinations by aligning with International Building Code (IBC) and ASTM testing standards used in trade and construction exams.

The ASTM C1396-24 Standard Specification for Gypsum Board, 2024 specification covers gypsum boards which include the following: gypsum wallboard for use on walls, ceilings, or partitions and that affords a surface suitable to receive decoration; predecorated gypsum board for use as the finished surfacing for walls, ceilings, or partitions; gypsum backing board, coreboard, and shaftliner board for use as a base in multilayer systems or as a gypsum stud or core in semisolid or solid gypsum board partitions, or in shaft wall assemblies; water-resistant gypsum backing board to be used as a base for the application of ceramic or plastic tile on walls or ceilings; exterior gypsum soffit board for exterior soffits and carport ceilings that are completely protected from contact with liquid water; gypsum sheathing board for use as sheathing on buildings; gypsum base for veneer plaster; gypsum lath for use as a base for gypsum plaster application; and gypsum ceiling board for interior ceilings and walls. Gypsum board shall consist of a noncombustible core, essentially gypsum, surfaced with paper bonded to the core. The specimens shall comply with the following required physical properties: core, end, and edge hardness; straightness of the edges and ends; length; tapered edge depth; flexural strength; humidified deflection; nail pull resistance; permeance; water resistance; and surface water absorption.