Work Item
ASTM WK90964

New Specification for Self-Adhering, Modified Bituminous Sheets used in Low Slop Roofing

1. Scope

This specification covers prefabricated, self-adhesive, modified bituminous sheet materials reinforced with one the following reinforcement types: 1) Glass Fiber 2) Polyester fabric. The prefabricated sheet utilizes SBS elastomer or APP plastomer as the primary modifier and are intended for use in the fabrication of multiple ply roofing and waterproofing membranes. The product may or may not have granule surfacing but must (or shall) have an adhesive bottom layer which is exposed by removal of a peel-away protective release paper or film sheet.

Keywords

SBS; APP; self; Adhesive; Self Adhesive; Adhering; base sheet

Rationale

In the absence of a Spec for Self-Adhering Modified Bituminous sheets, these sheet types are being evaluated under ASTM D6163, D6164, D6222, D6509, D6223. None of these standards address the adhesive properties inherent solely to SA Material. ASTM D1970 is utilized for SA base sheets and does address adhesion properties. But this spec does not cover potential Self-Adhering Cap sheets

The title and scope are in draft form and are under development within this ASTM Committee.

Details

Developed by Subcommittee: D08.04

Committee: D08

Staff Manager: Jamie Huffnagle

Work Item Status

Date Initiated: 05-29-2024

Technical Contact: Hughie Dixon