ASTM WK34907

    Revision of C1063 - 08 Standard Specification for Installation of Lathing and Furring to Receive Interior and Exterior Portland Cement-Based Plaster

    (What is a Work Item?)

    Active Standard: C1063 - 14c

    Developed by Subcommittee: C11.03 | Committee C11 | Contact Staff Manager



    WK34907

    1. Rationale

    Some expanded metal lath manufacturers are producing below weight expanded metal lath products, marketing them as nominal. They use the verbiage found in ASTM C-1063-08, TABLE 3 - Types and Weights of Metal Plaster Bases and Corresponding Maximum Permissible Spacing of Supports. The wording Nominal, is supporting those who wish to produce and market a non-code compliant product. This change would discourage manufacturers of galvanized expanded metal lath to produce lightweight lath sheets that do not meet the standard as outlined in ASTM C-847-10, Section 4.5.4 Weight, +/- 10%.


    Keywords

    ceiling; expansion control joints; lath; plaster; screed; suspended ceiling; walls; Cement materials/applications--specifications; Cement plaster--specifications; Gypsum plaster--specifications; Gypsum products--lath (specifications); Installation--gypsum products; Metal lath; Plaster--specifications; Portland cement--specifications; Screw attachment (for metal plaster base);
    Citing ASTM Standards
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    Work Item Status

    Date Initiated:
    10-07-2011

    Technical Contact:
    Christopher Little

    Status:
    Draft Under Development