ASTM C 1177/C 1177M Standard Specification for Glass Mat Gypsum Substrate for Use as Sheathing
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ASTM C 1177/C 1177M Document Information:
Title
Standard Specification for Glass Mat Gypsum Substrate for Use as Sheathing
ASTM International
Publication Date:
Jun 1, 2006
Scope:
This specification covers glass mat gypsum substrate, which is designed to be used as an exterior substrate for a weather barrier.
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.
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.
*A Summary of Changes section appears at the end of this standard.
Keywords:
- gypsum
- noncombustible
- sheathing
- glass mat gypsum substrate
- hardness
- nail pull resistance
- type X
- exterior substrate
- weather barrier
- flexural strength
- water resistance
- substrate
- fire-resistant classification
- core
- glass mat
- humidified deflection
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