ASTM WK73855

    Revision of C926 - 20a Standard Specification for Application of Portland Cement-Based Plaster

    (What is a Work Item?)

    Active Standard: C926 - 20b

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



    bond; brown coat; cementitious; exterior plaster; fog coat; portland cement; scratch coat; stucco;;


    Existing language in ASTM C926-20a prohibits the use of aluminum as flashing. This restriction conflicts with ASTM C1861 which allows anodized aluminum alloy as an acceptable material for lathing accessories (reference 4.2.4 ASTM C1861-18). Being that anodized aluminum alloy is an appropriate material for lathing accessories, it is only reasonable and appropriate that it can be used for flashing as well. The proposed ballot item revises ASTM C926 to allow for anodized aluminum alloy flashing.

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    Work Item Status

    Date Initiated:

    Technical Contact:
    Matthew Innocenzi

    Draft Under Development