{"product_id":"astm-c-842-standard-specification-for-application-of-interior-gypsum-plaster-2005","title":"ASTM C842-05(2015) Standard Specification for Application of Interior Gypsum Plaster","description":"\u003cstrong\u003eASTM C842-05(2015) Standard Specification for Application of Interior Gypsum Plaster\u003c\/strong\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"Head3 cdone\"\u003e1.1\u003c\/span\u003e This specification covers the minimum requirements for full-thickness (in accordance with \u003cspan class=\"Body-link1 cdone\"\u003eTable 1\u003c\/span\u003e) interior gypsum plastering on gypsum, metal, masonry, or monolithic concrete bases designed or prepared to receive gypsum plaster.\u003c\/p\u003e\n\u003cdiv class=\"ParaCenter\"\u003e\n\u003cdiv class=\"Footnote\"\u003e\n\u003cspan class=\"FootnoteTable cdone\"\u003e(A)\u003c\/span\u003e \u003cspan class=\"FootnoteTable cdone\"\u003eBase coat plastering of the same proportions as specified for unit masonry is not prohibited from being used over plain or reinforced monolithic concrete, provided the surface is first covered with a metal plaster base or first coated with a bonding compound.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"Footnote\"\u003e\n\u003cspan class=\"FootnoteTable cdone\"\u003e(B)\u003c\/span\u003e \u003cspan class=\"FootnoteTable cdone\"\u003eFinish coat plaster applied direct to a bonding compound over vertical monolithic concrete shall be not more than ³\/\u003csub\u003e16\u003c\/sub\u003e in. (4.8 mm) in thickness. Where more than ³\/\u003csub\u003e16\u003c\/sub\u003e in. of finish coat is required to bring such vertical surface to a true plane, a base coat of plaster shall first be applied to the bonding compound.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"Footnote\"\u003e\n\u003cspan class=\"FootnoteTable cdone\"\u003e(C)\u003c\/span\u003e \u003cspan class=\"FootnoteTable cdone\"\u003eWhere horizontal or vertical monolithic concrete surfaces require more than ³\/\u003csub\u003e8\u003c\/sub\u003e in. (9.5 mm) or \u003csup\u003e5\u003c\/sup\u003e\/\u003csub\u003e8\u003c\/sub\u003e in. (15.9 mm) of plaster, respectively, to produce required lines or surfaces, metal plaster base shall be attached to the concrete before application of plaster. Where concrete surface requires the application of more than 1 in. (25.4 mm) of plaster to produce required lines or surfaces, lath shall be applied over furring secured to the concrete.\u003c\/span\u003e\n\u003cp\u003e\u003cspan class=\"FootnoteTable cdone\"\u003e\u003csup\u003e†\u003c\/sup\u003e Typo corrected editorially October 2010.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"SectionLevel3\"\u003e\n\u003cp\u003e\u003cspan class=\"Head4 cdone\"\u003e1.1.1\u003c\/span\u003e Gypsum plaster applied to the interior side of exterior walls of masonry or concrete shall be isolated from the exterior wall.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"SectionLevel2\"\u003e\n\u003cp\u003e\u003cspan class=\"Head3 cdone\"\u003e1.2\u003c\/span\u003e Gypsum plasters shall not be used in exterior locations or interior “wet” areas.\u003c\/p\u003e\n\u003cdiv class=\"NoteLevel1\"\u003e\n\u003cp\u003e\u003cspan class=\"note cdone\"\u003eNOTE 1:\u003c\/span\u003e \u003cspan class=\"note cdone\"\u003eTo secure desirable results, this specification should be coordinated with the provisions of Specification \u003cspan class=\"Note-link1 cdone\"\u003eC841\u003c\/span\u003e. General information concerning full thickness gypsum plastering is contained in \u003cspan class=\"Note-link1 cdone\"\u003eAnnex A2\u003c\/span\u003e, \u003cspan class=\"Note-link1 cdone\"\u003eAnnex A3\u003c\/span\u003e, and \u003cspan class=\"Note-link1 cdone\"\u003eAnnex A4\u003c\/span\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"SectionLevel2\"\u003e\n\u003cp\u003e\u003cspan class=\"Head3 cdone\"\u003e1.3\u003c\/span\u003e Details of construction for a specific assembly to achieve the required fire resistance shall be obtained from reports of fire-resistance tests, engineering evaluations, or listings from recognized fire testing laboratories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"SectionLevel2\"\u003e\n\u003cp\u003e\u003cspan class=\"Head3 cdone\"\u003e1.4\u003c\/span\u003e Details of construction to achieve required sound control shall be obtained from reports of tests conducted at recognized sound testing laboratories in accordance with the applicable sound tests of Test Methods \u003cspan class=\"Body-link1 cdone\"\u003eE90\u003c\/span\u003e, \u003cspan class=\"Body-link1 cdone\"\u003eC423\u003c\/span\u003e, or \u003cspan class=\"Body-link1 cdone\"\u003eE492\u003c\/span\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"SectionLevel2\"\u003e\n\u003cp\u003e\u003cspan class=\"Head3 cdone\"\u003e1.5\u003c\/span\u003e The values stated in inch-pound units are to be regarded as the standard. The SI (metric) values given in parentheses are approximate and are provided for information purposes only.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"SectionLevel2\"\u003e\n\u003cp\u003e\u003cspan class=\"Head3 cdone\"\u003e1.6\u003c\/span\u003e The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cscript src=\"https:\/\/cdn.inspectlet.com\/inspectifr\/1199436174.js\" type=\"text\/javascript\"\u003e\u003c\/script\u003e","brand":"ASTM","offers":[{"title":"Default Title","offer_id":37496463065253,"sku":"ASTM-C842-0515","price":44.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1771\/6645\/products\/1903805_57db3153-406f-4702-a975-069cd52789d6.jpg?v=1608578678","url":"https:\/\/shop.upstryve.com\/products\/astm-c-842-standard-specification-for-application-of-interior-gypsum-plaster-2005","provider":"UpStryve Book Store","version":"1.0","type":"link"}