ASTM D3746/D3746M-85 (R2022) PDF Download

The ASTM D3746/D3746M-85 (R2022) standard is used to determine the resistance of bituminous roofing systems to impact loads. This test method can be conducted at any desired temperature using a specified missile with a specific weight, size, and shape.

The scope of this standard is to provide a standardized procedure for evaluating the impact resistance of bituminous roofing systems. It aims to assess the ability of these roofing systems to withstand impacts from various objects, such as hailstones or falling debris. By subjecting the roofing system to impact loads with a defined missile, this test method helps in determining the durability and performance of the roofing system under real-world conditions.

The standard outlines the specific parameters that need to be followed, including the weight, size, and shape of the missile used for impact testing. The tests can also be conducted at different temperatures to evaluate the performance of the roofing system across a range of environmental conditions.