ASTM D 1970/D1970M : 2019
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Standard Specification for Self-Adhering Polymer Modified Bituminous Sheet Materials Used as Steep Roofing Underlayment for Ice Dam Protection
Hardcopy , PDF
08-04-2020
English
11-01-2019
1.1This specification covers polymer modified bituminous sheet materials intended for use as underlayment on roof eaves, or valleys, or both, to prevent leakage of shingle, tile, or metal roofs from water back-up due to ice dams.
1.2These underlayment sheets have a sticky adhesive layer which is exposed by removal of a protective sheet. The top surface is suitable to work on during the application of the exposed roofing.
1.3Table of Contents:
| Section | |
| Scope | 1 |
| Referenced Documents | 2 |
| Terminology | 3 |
| Workmanship, Finish, and Appearance | 4 |
| Physical Requirements | 5 |
| Sampling | 6 |
| Test Methods | 7 |
| Conditioning | 7.1 |
| Thickness | 7.2 |
| Maximum Load and Elongation at Break | 7.3 |
| Adhesion to Plywood | 7.4 |
| Thermal Stability | 7.5 |
| Flexibility at –29 °C [–20 °F] | 7.6 |
| Tear Resistance | 7.7 |
| Moisture Vapor Permeability | 7.8 |
| Capability to Seal Around Nail | 7.9 |
| Waterproof Integrity of Side Lap Seam | 7.10 |
| Precision and Bias | 8 |
| Inspection | 9 |
| Rejection and Rehearing | 10 |
| Packaging and Package Marking | 11 |
| Keywords | 12 |
1.4The 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 nonconformance with the standard.
1.5This 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.6This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Important note : All end users must be registered with an Account prior to user licenses being assigned.Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.