Причина отмены The purpose of this guide was to provide advice for the selection of asphalt used in the construction of built-up roofing (BUR). This guide did not address the use of asphalt in waterproofing, cold-applied, or modified bituminous roofing.

Formerly under the jurisdiction of Committee D08 on Roofing and Waterproofing, this guide was withdrawn in July 2015 in accordance with section 10.5.3.1 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.

Значение и использование

This guide supersedes the slope guidelines of Appendix X1 of Specification D 312.

Hot-applied roofing asphalt serves both as the waterproofing agent and adhesive for construction of built-up roofing membranes. There are many variables that may affect the performance of BUR membranes. This guide provides general specification guidelines for the asphalt only.

Область применения

1.1 The purpose of this guide is to provide advice for the selection of asphalt used in the construction of built-up roofing (BUR). This guide does not address the use of asphalt in waterproofing, cold-applied, or modified bituminous roofing.

1.2 Reinforcements considered for use with roofing asphalt include ply sheets, (see Specifications D 226, D 2178, and D 5726), base sheets (see Specifications D 2626, D 4601, and D 4897), and cap sheets (see Specification D 3909). They consist of glass, organic, or synthetic fibers.

1.3 The use of asphalt in the placement of vapor retarders and rigid roof insulation also is addressed.