ASTM C840 PDF

ASTM C Standard Specification for Application and Finishing of Gypsum Board. ASTM C or GA provides the following requirements for installing control joints in gypsum board assemblies: Section (GA & GA. This specification covers requirements for the methods of application and finishing of gypsum board. Construction details for a specific assembly to achieve the.

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A asstm test of assemblies shall be conducted to determine a fire resistance rating required for gypsum board assembly. This specification covers requirements for the methods of application and finishing of gypsum board. Advice on specifing control joints in drywall construction is included in the following Tech Talk information below.

Where gypsum board is stored outside, it shall be off the ground, properly supported on a level platform and fully protected from the weather asmt direct sunlight exposure. This option is mobile friendly and compatible with all devices, including mobile tablets and smart phones.

Construction details for a specific assembly to achieve the required fire c84 shall be obtained from reports of fire-resistance tests, engineering evaluations, or listings from recognized fire testing laboratories. F840 is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application.

Semi-solid Gypsum Board Partitions. Masonry or concrete walls shall be dry, free of dust, oil, or form release agents, protrusions or voids, or foreign matter that inhibit astk for adhesively applied gypsum board. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

Isolation joints should be installed where structural elements such as slabs, columns or exterior walls can bear directly on non-load bearing partitions. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

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Wstm must have JavaScript enabled in your browser to utilize the functionality of this website. Where doorjambs extend from floor to ceiling and are spaced less than 30 feet apart, no control joints are required.

Even in the best of circumstances, when control joints have been specified and properly detailed, estimators may neglect to include them in the bid, and project managers are faced with managing a job with unforeseen costs.

Where gypsum board is stored outside, it shall be off the ground, properly supported on a level platform and fully protected from the weather or direct sunlight exposure. For specific precautionary statements, see 4. When “through wall” c8840 joints are required in fire-rated assemblies, special details See drawing are necessary.

ASTM C 840—08 Specification for Application and Finishing of Gypsum Board (PDF Download)

This standard does not purport to address all of the safety concerns, if any, associated with its use. Gypsum board shall be cut by scoring and breaking or by sawing, working from the face side.

Use on a local area network or other network is not permitted. Control joints are required in ceilings to limit areas to 2, square feet. Distribution of the PDF is not permitted.

Additionally, control joints should be installed in ceilings to limit dimensions in either direction to 50 feet. All materials shall be kept dry.

ASTM C —08 Specification for Application and Finishing of Gypsum Board (PDF Download)

Download NGC app from your smartphone. Materials categorized under this specification include: Work Item s – proposed revisions of this standard.

These details are based on Warnock Hersey International, Inc. Gypsum board assembly shall conform to acoustical tests of the specification where sound control is required.

The PDF Download is licensed per individual in which the individual can place on up to four electronic devices for their personal use. This specification covers requirements for the methods of application and finishing of gypsum board.

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This abstract is a brief summary of the referenced standard. Control joints should be installed where ceiling framing or furring changes direction. A fire test of assemblies shall be conducted to determine a fire resistance rating required for gypsum board assembly. In some cases when control joints are specified, the drawings are not coordinated with the specifications and the control c80 details are frequently missed. Construction details for a specific assembly to achieve the required fire resistance shall be obtained from reports of fire-resistance sstm, engineering evaluations, or axtm from recognized fire testing laboratories.

Axtm seems to be disabled in your browser. Gypsum wallboard, as well as other building products and materials, is subject to some form of movement induced by changes in moisture, temperature or both. Historical Version s – view previous versions of standard.

Application of Vinyl Faced Gypsum Board. Gypsum board shall be cut by scoring and breaking or by sawing, working from the face side.

Materials categorized under this specification include: Gypsum board assembly shall conform to acoustical tests of the specification where sound control is required.

These notes and footnotes excluding those in tables and figures shall not be considered as requirements of the specification. One component of gypsum board construction often overlooked by architects and contractors is the control joint.

Link to Active This link will always route to the current Active version of the standard. All materials shall be kept dry. Architects sometimes fail to specify control joints.