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About This Item

 

Full Description

1.1 This specification covers the classification, composition, and physical properties of flexible fibrous glass insulation for use in metal building roofs and walls.

1.2 The basic insulation blanket is designed to be post-processed by a laminating process that applies an adhesive bonded facing.

1.3 The thermal values measured in accordance with this specification for both pre-processed and post-processed insulation are for the insulation only and do not include the effects of air-film surface resistance, changes in mean temperature, or compression of insulation at the framing members of the building, through metal conductance of fasteners and other parallel heat-transfer paths due to design or installation techniques.

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 determine the applicability of regulatory requirements prior to use.

 

Document History

  1. ASTM C991-16

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    Standard Specification for Flexible Fibrous Glass Insulation for Metal Buildings

    • Most Recent
  2. ASTM C991-15


    Standard Specification for Flexible Fibrous Glass Insulation for Metal Buildings

    • Historical Version
  3. ASTM C991-08e1


    Standard Specification for Flexible Fibrous Glass Insulation for Metal Buildings

    • Historical Version
  4. ASTM C991-08


    Standard Specification for Flexible Fibrous Glass Insulation for Metal Buildings

    • Historical Version
  5. ASTM C991-03


    Standard Specification for Flexible Glass Fiber Insulation for Metal Buildings

    • Historical Version
  6. ASTM C991-00


    Standard Specification for Flexible Glass Fiber Insulation for Metal Buildings

    • Historical Version
  7. ASTM C991-98


    Standard Specification for Flexible Glass Fiber Insulation for Metal Buildings

    • Historical Version