ICC-ES AC378
Full Name
ICC-ES AC378 – Acceptance Criteria for Fiber-cement Interior Substrate Sheets Used in Wet and Dry AreasScope
ICC-ES AC378 outlines the acceptance criteria for fiber-cement interior substrate sheets used in wet and dry areas of buildings. These sheets are typically used as a backing material for tile, stone, or other finishes in bathrooms, kitchens, and other areas where moisture resistance is important. The scope of AC378 includes:- Material properties: it specifies the requirements for fiber-cement interior substrate sheets, including their composition, dimensions, physical properties (such as density and thickness), and performance characteristics (such as flexural strength, moisture resistance, and mold resistance).
- Testing procedures: it details the standardized testing methods for evaluating the physical and performance properties of fiber-cement substrate sheets, including tests for flexural strength, water absorption, dimensional stability, and mold growth.
- Installation requirements: it provides guidelines for the proper installation of fiber-cement substrate sheets in both wet and dry areas, ensuring adequate support, fastening, and sealing to prevent moisture intrusion.
- Evaluation and certification: it outlines the process for evaluating and certifying fiber-cement substrate sheets to ensure they comply with the acceptance criteria and can be safely used in construction.