ASTM D4897/D4897M - 16 - Standard Specification for Asphalt-Coated Glass-Fiber Venting Base Sheet Used in Roofing

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ASTM D4897/D4897M - 16

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

Status : Current   Published : July 2016

Format
PDF

Format
HARDCOPY



1.1 This specification covers asphalt-impregnated and coated glass-fiber base sheet with 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 shall be permitted to be with or without perforations or embossings.

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.

1.3  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 limitations prior to use.




Standard NumberASTM D4897/D4897M - 16
TitleStandard Specification for Asphalt-Coated Glass-Fiber Venting Base Sheet Used in Roofing
StatusCurrent
Publication Date01 July 2016
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Descriptors Base sheet First ply Glass fiber Impregnated and coated Partially attached
ICS91.100.50
PublisherASTM
FormatA4
DeliveryYes
Pages3
File Size64 KB
Price£36.00


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