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ASTM C 1177/C 1177M—08 Specification for Glass Mat Gypsum Substrate for Use as Sheathing (PDF Download)
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This specification covers the requirements for glass mat gypsum substrates designed to be used as exterior substrate or sheathing for weather barriers. The substrates shall consist of a noncombustible water-resistant gypsum core, surfaced with glass mat partially or completely embedded in the core. Materials shall be sampled, tested, and conform accordingly to specified physical property (flexural strength, humidified deflection, nail pull resistance, water resistance, and core, end, and edge hardness) and dimensional (thickness, width, length, end squareness, and edges) requirements.
This standard is referenced in the 2012 International Building Code® and the International Residential Code®.
| Description: | This specification covers the requirements for glass mat gypsum substrates designed to be used as exterior substrate or sheathing for weather barriers. The substrates shall consist of a noncombustible water-resistant gypsum core, surfaced with glass mat partially or completely embedded in the core. Materials shall be sampled, tested, and conform accordingly to specified physical property (flexural strength, humidified deflection, nail pull resistance, water resistance, and core, end, and edge hardness) and dimensional (thickness, width, length, end squareness, and edges) requirements. This standard is referenced in the 2012 International Building Code® and the International Residential Code®. |
|---|---|
| Pages | 3 |
| Code Year | 2012 |
| Publisher | ASTM International |
| Language | English |