Active standard | Published: 01/07/2025

ASTM D226/D226M-25

Standard Specification for Asphalt-Saturated Organic Felt Used in Roofing and Waterproofing

Available languages: English

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Detail information

Designation: ASTM D226/D226M-25

Publication date: 01/07/2025

Pages: 3

Country: American technical standard

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Anotation

This specification covers asphalt-saturated organic felt used in roofing and waterproofing. Two types of asphalt-saturated felts are presented: type I - commonly called No. 15 asphalt felt, and type II - commonly called No. 30 asphalt felt. In the process of manufacture a single thickness of dry felt shall be saturated with an asphaltic saturant. The methods for the determination of openness of the perforations in saturated felts are presented in detail.

Keywords:
asphalt, built-up roofs, organic felt, steep slope roofing, waterproofing,, ICS Number Code 91.100.50 (Binders. Sealing materials)

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