Work Item
ASTM WK95252
Revision of D8257/D8257M-22 Standard Specification for Mechanically Attached Polymeric Roof Underlayment Used in Steep Slope Roofing
Rationale
The proposed revision is intended to create a standard protocol for determining the ASTM E108 fire classification of roof assemblies that include a D8257-compliant polymeric underlayment. This revision will establish the worst-case designations for each roof covering category under which D8257 underlayments are specified.
Work Item Status
Date Initiated: 06-11-2025
Technical Contact: Emma Amiralaei
Item: 000
Ballot:
Status: