ASTM WK62276

    New Practice for Determining the Flood Damage Resistance Rating of Materials and Assemblies

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    Developed by Subcommittee: E06.25 | Committee E06 | Contact Staff Manager



    WK62276

    1. Scope

    The goal of this practice is to establish procedures for determining whether building materials and assemblies are considered to be flood damage resistant for construction applications that comply with the National Flood Insurance Program (NFIP) (44 CFR 60.3(a)(3)). It was developed from and is intended to supplement specifications in NFIP Technical Bulletin 2, Flood Damage-Resistant Materials Requirements (FEMA TB 2), which is referenced in the 2015 International Residential Code (IRC) as well as ASCE/SEI 24-14. This practice includes descriptions of testing parameters for the purpose of evaluating effects on specimen physical properties, mechanical properties, drying, and the ability to be cleaned and restored to serviceability. The intent is to evaluate the specimens water immersion response and ability to be cleaned and restored to serviceability under the exposure and drying conditions specified in E3075-16. This practice is intended to apply to building materials with properties established in material standards and manufacturer specifications. Due to the wide range of construction materials, the performance evaluation of physical and mechanical properties is tied to underlying test methods and performance criteria appropriate for the material and/or assembly. It is incumbent on the user to identify the applicable test methods and important baseline performance metrics for dry service condition (e.g. non-flood exposure) such that evaluation for the effect of standard water immersion and drying exposure can be compared.


    Keywords

    direct and prolonged contact; Federal Emergency Management Agency; FEMA; flooding; National Flood Insurance Program; NFIP; serviceability

    Rationale

    Title 44 of the Code of Federal Regulations (44 CFR) specifies that all new construction and substantial improvements below the Base Flood Elevation (BFE) shall be constructed with materials resistant to flood damage. Currently, the only document that provides guidance on what constitute a materials resistant to flood damage is FEMAs Technical Bulletin 2 (TB 2). TB 2 was updated in 2008 and is currently referenced in the 2015 International Residential Code (IRC) as well as ASCE/SEI 24-14 Flood Resistant Design and Construction. A total of 110 materials are classified as acceptable or unacceptable for use below the BFE. However, TB 2 does not provide any quantitative methods or pass/fail criteria for determining a materials acceptability. Without a standardized method of testing a material or assembly to determine its resistance to flood water, there are questions about acceptability of certain non-classified materials and whether they will perform after a flood event. The primary users will be manufacturers who will subject their materials and assemblies to the testing requirements and local building officials who will use the ratings to determine what materials are allowed to be used in construction below the BFE.

    The title and scope are in draft form and are under development within this ASTM Committee.

    Citing ASTM Standards
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    Work Item Status

    Date Initiated:
    02-07-2018

    Technical Contact:
    Juan Nieves

    Item:
    001

    Ballot:
    E06.25 (18-01)

    Status:
    Negative Votes Need Resolution