ASTM C926-20,Standard Specification for Application of Portland Cement-Based Plaster.
The size of this standard pdf file is 6.39M.
ASTM C926-20 covers the minimum technical requirements for the application of full thickness portland cement-based plaster for exterior (stucco) and interior work.
Requirements for Bases to Receive Portland Cement-Based plaster
Metal plaster bases, lathing accessories, furring accessories and fasteners used to receive plaster shall be installed in conformance with Specification C1063, except as otherwise specified. Non-metallic plaster bases used to receive plaster shall be installed in conformance with Specification C1787.
Keywords
bond; brown coat; cementitious; exterior plaster; fog coat; portland cement; scratch coat; stucco.
Where a specific degree of fire resistance is required for plastered assemblies and constructions, details of construction shall be in accordance with official reports of fire tests conducted by recognized testing laboratories, in accordancewith Test Methods E119.

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