ASTM D7655/D7655M
Standard Classification for Size of Aggregate Used as Ballast for Membrane Roof Systems
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About This Item
ASTM D7655/D7655M is the ASTM standard for classifying the size of aggregate used as ballast for membrane roof systems. It provides a common technical reference for identifying ballast aggregate by size, helping support consistent product selection, communication, and quality control. For roofing projects that rely on membrane systems, having a clear classification standard can improve purchasing decisions and reduce uncertainty when specifying materials. ASTM D7655/D7655M is especially useful when consistency and compatibility matter.
What is ASTM D7655/D7655M?
ASTM D7655/D7655M, Standard Classification for Size of Aggregate Used as Ballast for Membrane Roof Systems, is a classification document focused on the sizing of aggregate intended for ballast applications on membrane roofs. Rather than describing a full roofing assembly, it centers on how aggregate size is identified and categorized for this specific use. This helps contractors, suppliers, and specifiers communicate material requirements more clearly and compare products using a shared ASTM standard.
Where is ASTM D7655/D7655M used?
This standard is commonly used in membrane roof system work where aggregate ballast is part of the roof design. It may support specification writing, material procurement, and receiving inspections for aggregate intended to remain on top of a membrane roof system. ASTM D7655/D7655M is also relevant to roofing product documentation and quality checks when the size of the ballast aggregate needs to be identified in a consistent, standards-based way.
Why is ASTM D7655/D7655M important?
ASTM D7655/D7655M helps bring consistency to how ballast aggregate size is classified for membrane roof systems. That consistency can support compliance efforts, reduce specification errors, and improve communication between owners, specifiers, suppliers, and installers. In practical terms, using a recognized ASTM standard can help streamline procurement and quality control while lowering the risk of selecting aggregate that does not match the intended application.
- Aggregate size classification
- Membrane roof ballast applications
- Specification and procurement support
- Quality control reference
- Consistent technical communication
- Publication Date: 2022-11-08
- Publisher: ASTM
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