ASTM C1630 - 11

    Standard Guide for Development of Coverage Charts for Loose-Fill Thermal Building Insulations

    Active Standard ASTM C1630 | Developed by Subcommittee: C16.23

    Book of Standards Volume: 04.06


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    Significance and Use

    Coverage charts list the required installed and product in-service parameters of minimum thickness, maximum net coverage per package, and minimum mass per unit area to achieve each listed thermal performance (R-value) level. Chart information corresponds to numerous standard R-value levels representing common building codes, industry standards, or legislated requirements (see example in the Appendix X1) and therefore additional chart columns may be required, that is, number of packages per 1 000 ft2 (100m2), and initial installed thickness.

    This guide applies to coverage charts for installations in open, horizontal attic floor spaces. Chart maximum net coverages are based upon net floor area; framing area deducted. Sloped ceilings, HVAC equipment and ductwork, and other factors can significantly influence product coverage and are to be considered by the manufacturer.

    1. Scope

    1.1 This guide provides information to manufacturers for the development of a loose-fill thermal insulation product coverage chart. This guide is limited to developing a coverage chart from density versus thickness, apparent thermal conductivity versus density, and thickness versus area mass relationships obtained through product testing.

    1.2 This guide applies to a wide variety of loose-fill thermal insulation products including mineral fiber (Specification C764), or cellulosic fiber (Specification C739) materials; granular types including vermiculite (Specification C516) and perlite (Specification C549); pelletized products; and any other insulation materials that are installed pneumatically or poured in place.

    1.3 Coverage charts for loose-fill insulation products are required by regulation under the United States Federal Trade Commissions 16CFR Part 460. Other countries or local governing agencies may have coverage chart requirements in addition to, or that differ from, those presented in this guide; see the Appendix for examples.

    1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

    1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to use.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    C168 Terminology Relating to Thermal Insulation

    C516 Specification for Vermiculite Loose Fill Thermal Insulation

    C549 Specification for Perlite Loose Fill Insulation

    C687 Practice for Determination of Thermal Resistance of Loose-Fill Building Insulation

    C739 Specification for Cellulosic Fiber Loose-Fill Thermal Insulation

    C764 Specification for Mineral Fiber Loose-Fill Thermal Insulation

    C1374 Test Method for Determination of Installed Thickness of Pneumatically Applied Loose-Fill Building Insulation

    C1574 Guide for Determining Blown Density of Pneumatically Applied Loose-Fill Mineral Fiber Thermal Insulation

    E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

    Other Referenced Documents

    16CFRPart460 ,United States Federal Trade Commission Labeling and Advertising of Home Insulation United States Code of Federal Regulations, Title 16, Part 460.


    ICS Code

    ICS Number Code 91.100.60 (Thermal and sound insulating materials)

    UNSPSC Code

    UNSPSC Code 30141500(Thermal insulation)


    DOI: 10.1520/C1630-11

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