Standard Historical Last Updated: May 13, 2020 Track Document
ASTM D2626/D2626M-04(2012)e1

Standard Specification for Asphalt-Saturated and Coated Organic Felt Base Sheet Used in Roofing

Standard Specification for Asphalt-Saturated and Coated Organic Felt Base Sheet Used in Roofing D2626_D2626M-04R12E01 ASTM|D2626_D2626M-04R12E01|en-US Standard Specification for Asphalt-Saturated and Coated Organic Felt Base Sheet Used in Roofing Standard new BOS Vol. 04.04 Committee D08
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Abstract

This specification covers the standard for asphalt-saturated and coated organic felt base sheet with mineral surfacing on the top side, with or without perforations. These sheets are proposed for use as the first ply of a built-up roof and are also suitable for use as vapor retarder. The felt shall be manufactured principally from organic fibers, or mixtures thereof. The surface shall be smooth and uniform and reasonably free of lumps and particles of foreign substances. Physical requirements such as pliability, breaking strength, and water vapor permeance of the materials shall comply with the specifications prescribed herein.

Scope

1.1 This specification covers asphalt-saturated and coated organic felt base sheet with mineral surfacing on the top side, with or without perforations, for use as the first ply of a built-up roof. 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.

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Details
Book of Standards Volume: 04.04
Developed by Subcommittee: D08.04
Pages: 4
DOI: 10.1520/D2626_D2626M-04R12E01
ICS Code: 91.100.50