ASTM D6164/D6164M-21 PDF Download

The ASTM D6164/D6164M-21 standard is a specification for styrene butadiene styrene (SBS) modified bituminous sheet materials that use polyester reinforcements. These sheet materials are used in the fabrication of multiple ply roofing and waterproofing membranes.

The standard covers two grades of sheet materials: G (granule surfaced) and S (smooth surfaced). The materials are reinforced with polyester fabric and modified with SBS thermoplastic elastomer. The sheet materials must meet certain dimensional and physical requirements such as thickness, net mass per unit area, peak load before and after heat conditioning, elongation at peak load, tear strength, low temperature flexibility, dimensional stability, compound stability, and granule embedment.

It's important to note that this standard is a material specification only and does not address issues related to specific roof constructions or application techniques. The specified tests and property limits are meant to establish minimum properties for the sheet materials. Design criteria for in-place roof systems, such as fire resistance, impact/puncture resistance, uplift resistance, and material compatibility, are beyond the scope of this standard.