Active Standard ASTM D2626 / D2626M | Developed by Subcommittee: D08.04
Book of Standards Volume: 04.04
Historical (view previous versions of standard)
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.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D146 Test Methods for Sampling and Testing Bitumen-Saturated Felts and Woven Fabrics for Roofing and Waterproofing
D226 Specification for Asphalt-Saturated Organic Felt Used in Roofing and Waterproofing
D228 Test Methods for Sampling, Testing, and Analysis of Asphalt Roll Roofing, Cap Sheets, and Shingles Used in Roofing and Waterproofing
D1079 Terminology Relating to Roofing and Waterproofing
E96/E96M Test Methods for Water Vapor Transmission of Materials
ICS Number Code 91.100.50 (Binders. Sealing materials)
UNSPSC Code 30151500(Roofing materials); 11162200(Nonwoven fabrics)