ASTM D228/D228M is the standard test methods reference for sampling, testing, and analysis of asphalt roll roofing, cap sheets, and shingles used in roofing and waterproofing. It helps define a consistent approach for evaluating these materials so users can compare products more reliably and support quality control. For procurement teams, laboratories, and manufacturers, this ASTM standard provides a practical technical basis for handling common roofing and waterproofing materials in a uniform way.

What is ASTM D228/D228M?

ASTM D228/D228M is a technical document focused on test methods for asphalt-based roofing products, including roll roofing, cap sheets, and shingles. Its role is to guide sampling, testing, and analysis so results are more consistent across materials and evaluations. As the official title indicates, the standard is centered on roofing and waterproofing applications, making it useful for product assessment, verification, and routine technical review of these materials.

Where is ASTM D228/D228M used?

This standard is commonly used in settings that evaluate asphalt roll roofing, cap sheets, and shingles for roofing and waterproofing service. It is relevant in material testing, incoming inspection, production quality control, and product comparison workflows. ASTM D228/D228M may also be used by laboratories and manufacturers that need a recognized method for sampling and analyzing these roofing materials before they are accepted, specified, or incorporated into a project.

Why is ASTM D228/D228M important?

ASTM D228/D228M matters because it supports consistent testing and evaluation of asphalt roofing products. Using a recognized ASTM standard can improve comparability between test results, strengthen quality control practices, and reduce uncertainty during product review or procurement. It also helps align technical work with a formal method, which is valuable when assessing compliance, checking material quality, or documenting performance-related characteristics for roofing and waterproofing applications.

• Sampling guidance for asphalt roofing materials
• Testing and analysis of roll roofing and shingles
• Cap sheet evaluation for roofing and waterproofing use
• Consistent quality control and product comparison
• Technical support for specification and compliance work