ASTM-D4897 Standard Specification for Asphalt-Coated Glass-Fiber Venting Base Sheet Used in Roofing

ASTM-D4897 - 2016 R23 EDITION - CURRENT
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Standard Specification for Asphalt-Coated Glass-Fiber Venting Base Sheet Used in Roofing
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Scope

1.1 This specification covers asphalt impregnated and coated glass fiber base sheet with fine mineral surfacing on the top side and coarse mineral granules on the bottom side for use as the first ply of a roofing membrane. These base sheets provide for the lateral release of pressure in roofing systems because they are not solidly attached and the coarse granular surface provides an open, porous channel in the horizontal plane beneath the membrane. The base sheets may be with or without perforations or embossings.

1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

Keywords

base sheet; first ply; glass fiber; impregnated and coated; partially attached

To find similar documents by ASTM Volume:

04.04 (Roofing and Waterproofing)

To find similar documents by classification:

91.100.50 (Binders. Sealing materials Including geomembranes, asphalts for buildings, etc.)

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Document Number

ASTM-D4897_D4897M-16R23

Revision Level

2016 R23 EDITION

Status

Current

Modification Type

Revision

Publication Date

Feb. 24, 2023

Document Type

Specification

Page Count

3 pages

Committee Number

D08.04