ASTM D1970/D1970M
Standard Specification for Self-Adhering Polymer Modified Bituminous Sheet Materials Used as Steep Roofing Underlayment for Ice Dam Protection
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About This Item
ASTM D1970/D1970M is the ASTM standard for self-adhering polymer modified bituminous sheet materials used as steep roofing underlayment for ice dam protection. It provides a technical basis for evaluating this type of roofing underlayment so buyers, specifiers, and manufacturers can align on expected material characteristics and performance-related requirements. For projects where ice dam protection is part of the roofing assembly, this standard helps support more consistent product selection, comparison, and quality control.
Overview of ASTM D1970/D1970M
The standard titled Standard Specification for Self-Adhering Polymer Modified Bituminous Sheet Materials Used as Steep Roofing Underlayment for Ice Dam Protection addresses a specific class of roofing underlayment products. ASTM D1970/D1970M is intended to define the specification framework for self-adhering sheet materials used beneath steep-slope roofing systems where ice dam protection is a concern. In practice, it helps establish a common reference for material requirements and product evaluation, making it easier to compare offerings and support specification decisions.
Common use cases of ASTM D1970/D1970M
This standard is commonly used when selecting or reviewing self-adhering underlayment for steep roofs, especially in areas where ice dam protection is important. It is relevant to roofing product procurement, submittal review, and specification writing for polymer modified bituminous sheet materials. ASTM D1970/D1970M may also be used by manufacturers and testing groups to align product characteristics with a recognized standard during development, verification, or quality assurance activities.
Benefits of using ASTM D1970/D1970M
Using ASTM D1970/D1970M supports clearer communication between suppliers, specifiers, and contractors by providing a common technical reference for this underlayment category. It can help reduce procurement uncertainty, improve product consistency, and support more reliable evaluation of roofing materials intended for ice dam protection. For organizations managing roofing specifications or compliance documentation, the standard offers a practical way to compare products against an established ASTM benchmark.
- Self-adhering polymer modified bituminous sheet materials
- Steep roofing underlayment applications
- Ice dam protection focus
- Product specification and comparison
- Quality control and compliance reference
- Publication Date: 2021-06-08
- Publisher: ASTM
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