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This specification covers the material characteristics, physical requirements, and sampling method appropriate to the selection of roofing slate for use as roof shingles. Slates not included in this specification are those containing soft carbonaceous ribbons. Roofing shall be classified either as Grade S1, S2, or S3, wherein each grade shall meet specified breaking load, absorption, and depth of softening requirements.
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 the material characteristics, physical requirements, and sampling appropriate to the selection of slate for use as roof shingles.
1.2 Slates not included in this specification are those containing soft carbonaceous ribbons. The wide variation in physical properties and composition of such ribbon slates render their service life uncertain under some conditions of use.
1.3 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.
C119 Terminology Relating to Dimension Stone
C120/C120M Test Methods of Flexure Testing of Slate (Breaking Load, Modulus of Rupture, Modulus of Elasticity)
C121/C121M Test Method for Water Absorption of Slate
C217/C217M Test Method for Weather Resistance of Slate
ICS Number Code 91.100.15 (Mineral materials and products)
UNSPSC Code 30151510(Slate roofing)
ASTM C406 / C406M-15, Standard Specification for Roofing Slate, ASTM International, West Conshohocken, PA, 2015, www.astm.orgBack to Top