ASTM WK37211

    Revision of C406 / C406M - 10 Standard Specification for Roofing Slate

    (What is a Work Item?)

    Active Standard: C406 / C406M - 10

    Developed by Subcommittee: C18.03 | Committee C18 | Contact Staff Manager


    1. Rationale

    To address concerns raised by the National Slate Association related to ASTMs reference to knots and knurls as defects and reference to Standard Roofs as being 3/16-1/4inch


    Citing ASTM Standards
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    Work Item Status

    Date Initiated:

    Technical Contact:
    David Large

    Draft Under Development