Standard Specification for Glass Mat Gypsum Substrate for Use as Sheathing
STANDARD published on 1.4.2024
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Designation standards: ASTM C1177/C1177M-24
Publication date standards: 1.4.2024
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: American technical standard
Category: Technical standards ASTM
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.
Keywords:
core, exterior substrate, fire-resistant classification, flexural strength, glass mat, glass mat gypsum substrate, gypsum, hardness, humidified deflection, nail pull resistance, noncombustible, sheathing, substrate, type X, water resistance, weather barrier ,, ICS Number Code 91.100.10 (Cement. Gypsum. Lime. Mortar)