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About This Item

 

Full Description

1.1 This specification covers asphalt impregnated and coated glass fiber base sheet, with or without perforations, for use as the first ply of the built-up roofing. When not perforated, this sheet is suitable for use as a vapor retarder, with a solid mopping of asphaltic material, under roof insulation or between multiple layers of roof insulation.

1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

 

Document History

  1. ASTM D4601/D4601M-04(2020)


    Standard Specification for Asphalt-Coated Glass Fiber Base Sheet Used in Roofing

    • Most Recent
  2. ASTM D4601/D4601M-04(2012)e1

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    Standard Specification for Asphalt-Coated Glass Fiber Base Sheet Used in Roofing

    • Historical Version
  3. ASTM D4601-04


    Standard Specification for Asphalt-Coated Glass Fiber Base Sheet Used in Roofing

    • Historical Version
  4. ASTM D4601-98


    Standard Specification for Asphalt-Coated Glass Fiber Base Sheet Used in Roofing

    • Historical Version