ASTM WK43394

    Revision of C926 - 12a Standard Specification for Application of Portland Cement-Based Plaster

    (What is a Work Item?)

    Active Standard: C926 - 15

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


    1. Rationale

    Backplastering is an obsolete practice for exterior walls because it cannot accommodate the water barrier system required in the ICC code at 1403.2, including the water barrier, means of drainage or condensation control. This revision excludes backplastering in C926 from use as an exterior wall cladding.


    brown coat; cementitious; exterior plaster; fog coat—bond; portland cement; scratch coat; stucco;
    Citing ASTM Standards
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    Work Item Status

    Date Initiated:

    Technical Contact:
    Matthew Innocenzi

    Draft Under Development