Designer choices and responsibilities in astm c1063 and astm. Following are some key points that city inspectors will be inspecting for. Astm c106399 standard specification for installation of lathing and furring to receive interior and exterior portland cementbased plaster superseded see active link, below. Astm c1063 14a standard specification for installation of lathing and furring to receive interior and exterior portland cementbased plaster. C 847 metal lath properties, c 841 interior metal lath and trims for stucco, c 1063 application of metal lath and accessories. Astm c1780 installation of adhered manufactured stone veneer.
These requirements do not by default define a unit of work or assign responsibility for contractual purposes, which is the purview of a contract or contracts made between contracting entities. Best practices for selection and installation of expanded. Recommended installation of control joints structa wire. Raw material coming into the machine in foreground and the cutters in the machine background. Astm c1063 installation of metal plaster base systems. Standards astm c and astm c were carefully researched by. Lathing and furring accessory and fastener installation requirements remain in c as well. For steel sheet components not included in astm c 1063, comply with astm c 645 requirements for metal, unless otherwise indicated. Rib lath support spacing for metal lath adapted from astm c1063, table 3 types of lath nominal weight vertical spacing inches horizontal inches per sq. First lets deal with the proper lapping of metal lath. Astm c106399 standard specification for installation of lathing and furring to receive interior and exterior portland cementbased plaster.
Best practicesexpanded metal lath products 6 picture showing lath applied to the wall with vgroove selffurring and weather resistant barrier behind the lath. Astm c1063 standard specification for installation of. Astm c 1063, the installation specifi cation for metal lath used with portland cement stucco, provides specific data in table 3 that enables the designer to. Astms and code standards astm c847 astm a653 astm c841 installation only astm c1063 installation only icc esr1623 fed. Stucco installation, procedures and guidelines indian river. Stucco over expanded metal lath the most common errors and. Metal lath and lathing accessories as a base to receive portland cement plastering is almost solely used for stucco wall cladding systems placed over a water. Metal lath is regularly used over stud wall construction with or without. Astmc1063 standard specification for installation of. Some of our experts feel that too large of a lap is as detrimental as too small of a lap.
Astm c1063 does not, however, explain that to do so, you must have backing at either side of the vertical joint to properly secure the discontinuous ends of the lath and the. If the language in astm could be changed to allow the option of continuous lath behind the vertical control joint or add language that requires the proper framing support not the plastering contractors responsibility would be very helpful. C926 specification for application of portland cementbased plaster. Astm c1861 lathing and furring accessories and fasteners, for interior and exterior portland cementbased plaster. A653a653m specification for steel sheet, zinccoated galvanized or zinciron alloycoated galvannealed by the hotdip process. Scope 1 referenced documents 2 terminology 3 delivery and storage of materials 4 materials 5 requirements for substrates to. The eight deadly sins of expanded metal lath installation. Reference astm c926 application of portland cement based plaster. Best practicesexpanded metal lath products 6 clarkdietrich.
Astm c 1063, standard specification for installation of lathing and furring to receive. Zinc accessories, per astm b69, are produced from 99% zinc alloy and. 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. Standard specification for installation of lathing and furring to receive interior and exterior portland cementbased plaster this specification covers the minimum requirements for lathing and furring for the application of exterior and interior portland cementbased plaster as in specification c 926 or specification c 841. The fasteners are attached into the groove and spaced at proper widths to achieve astm c 1063 installation standards. This specification covers the installation of lathing and furring to receive interior and exterior portland cementbased plaster. Astm c1063 08 standard specification for installation of. Best practices for selection and installation of expanded metal lath. Reference astm c 926 application of portland cement based plaster. Over time, this wear can result in furring falling below the onequarter inch that is required in astm c 1063, table 3, footnote c. Astm c106303 standard specification for installation of lathing and furring to receive interior and exterior portland cementbased plaster superseded see active link, below. Install the control joint over continuous lath, which has proven to work but violates astm c 1063.
Stucco installation standards portland cement association. Astm c 1063 requires that expanded metal lath be lapped a minimum of 12 inch along the long dimension of the sheet and a. Astm c1063 19a standard specification for installation. Galvanized steel rib lath for sale buy astm c 1063,vinyl. This is first a guideline, providing a general overview and also equips the new steel lather with specific installation details, based on astm c 1063 99 standard specification for installation of metal lath. Notably, these south florida systems were installed in one of the highest wind zones in. Astm c1063 11b standard specification for installation of. Installation of lathing and furring to receive interior and exterior.
Galvanized steel rib lath for sale, find complete details about galvanized steel rib lath for sale,astm c 1063,vinyl lath,galvanized lath from metal building materials supplier or manufacturerhebei fulangsi metal wire mesh product co. Astm c106319a standard specification for installation of lathing and furring to receive interior and exterior portland cementbased plaster. Metal lath shall be fabricated from coldrolled carbon steel sheet of commercial quality as specified and galvanized metal lath shall have a g60 coating. All galvanized products produced from g60 pregalvanized steel coil, per astm c 847. Other alternative laths, like pure zinc alloy a softer metal versus galvanized steel and nonmetallic scrims, are being advertised as acceptable laths for stucco and stone as well.
Lath shall not be continuous through control joints, but shall be stopped and tied at each side in summary structa wire corp. Scratch coat 38 inch thick, brown coat 38 inch thick, and finish coat 18 inch thick. The astm c10631 compliant method for installing control joints is to do so prior to the lath installation, thereby providing discontinuous lath terminating into the joint. Zinc accessories, per astm b69, are produced from 99% zinc alloy and are recom.
This question probably arises because plaster is often attached to wall. Astm c 84709 specification for metal lath pdf download. Standard specification for installation of lathing. Conventional stucco over wood should always be applied as a threecoat system. People often ask us if stucco, or portland cement plaster, will adhere to concrete or concrete masonry.
Astm international astm c106312c standard specification. Astm c1063 standard specification for installation of lathing and furring to receive. Astm c106316a, standard speciication for installation of lathing and furr ing to receive interior and exterior portland. This wear can manifest in furring falling below the 14 inch required in astm c 1063, table 3, footnote c. Lath manufacturers have to replace this furring tooling to maintain the 14 inch. Metal lath shall be fabricated from hotdipped galvanized steel. Backing shall not be placed between plaster base lath and flanges of accessories, metal lath to metal flange contact required 7. Astm c1063 11a standard specification for installation of lathing and furring to receive interior and exterior portland cementbased plaster 0 share share with facebook share with tweeter share with linkedin. Astm c1063 comply with astm a653 astm c1063 astm c1063 pdf c1063 astm d 658 astm c11 astm e 238 pdf astm d 63803 astm a7 astm e 291 pdf astm c12 astm a6 astm e 303 astm c 794 pdf astm c78 pdf astm c 94691 astm d 882 astm c 90 astm d 88 astm c 91 astm c1063 astm c1063 pdf c1063 astm d 658 astm c11 astm e 238 pdf astm d 63803 astm a7. How to install metal lath these installation recommendations are intended to be instructional and accurate. Access astm standards from any browser on your computer, tablet or smart phone. Not flat lathe 59 furred lath allows plaster to encase wire 60. C11 terminology relating to gypsum and related building materials and systems. Standard specification for installation of lathing and furring to receive interior and exterior portland cementbased plaster.
Astm c 1063, standard specification for installation of lathing and furring to receive interior and exterior portland cementbased plaster. Mar 06, 2008 install the control joint over continuous lath, which has proven to work but violates astm c 1063. Astmc1063 historical revision information standard specification for installation of lathing and furring to receive interior and exterior portland cementbased plaster astmc1063 2012a edition superseded show complete document history. Astm standard c 1063 99 is the national standard adopted by the city of overland park that contractors should reference for the installation of metal lath. C, which establishes the requirements for stucco applied over a metal plaster base a. As soon as the transaction is completed, your astm standards subscription will be ready for access. C1063 11b standard specification for installation of lathing and furring to receive interior and exterior portland cementbased plaster, ceiling, expansion control joints, lath, plaster, screed, suspended ceiling, walls, portland cementspecifications, screw attachment for metal plaster base, cement materialsapplicationsspecifications, cement plasterspecifications, gypsum plaster. Physical properties such as thickness, width, length, and weight shall be specified. Standard specification for application of portland cement. Astm c1063 11a standard specification for installation. Standard specification for installation of lathing and. Astm c1063 standard specification for installation of lathing and furring to receive interior and exterior portland cementbased plaster.
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