ASTM C1177/C1177M-99
Standard Specification for Glass Mat Gypsum Substrate for Use as Sheathing

Standard No.

ASTM C1177/C1177M-99

Release Date

1999

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM C1177/C1177M-01

Latest

ASTM C1177/C1177M-24

Scope

1.1 This specification covers glass mat gypsum substrate, which is designed to be used as an exterior substrate for a weather barrier.

1.2 The values stated in either inch-pound units or SI (metric) are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system shall be used independently of the other. Values from the two systems shall not be combined.

1.3 The text of this standard references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.

ASTM C1177/C1177M-99 history

• 2024 ASTM C1177/C1177M-24 Standard Specification for Glass Mat Gypsum Substrate for Use as Sheathing
• 2017 ASTM C1177/C1177M-17 Standard Specification for Glass Mat Gypsum Substrate for Use as Sheathing
• 2013 ASTM C1177/C1177M-13 Standard Specification for Glass Mat Gypsum Substrate for Use as Sheathing
• 2008 ASTM C1177/C1177M-08 Standard Specification for Glass Mat Gypsum Substrate for Use as Sheathing
• 2006 ASTM C1177/C1177M-06 Standard Specification for Glass Mat Gypsum Substrate for Use as Sheathing
• 2004 ASTM C1177/C1177M-04e1 Standard Specification for Glass Mat Gypsum Substrate for Use as Sheathing
• 2004 ASTM C1177/C1177M-04 Standard Specification for Glass Mat Gypsum Substrate for Use as Sheathing
• 2001 ASTM C1177/C1177M-01 Standard Specification for Glass Mat Gypsum Substrate for Use as Sheathing
• 1999 ASTM C1177/C1177M-99 Standard Specification for Glass Mat Gypsum Substrate for Use as Sheathing