1.1 This specification covers plain and foil-backed types of gypsum lath which is designed to be used as a base for application of gypsum plaster (see Specification C28).

Note 1--Specification C841 contains application procedures for interior lathing and furring, and Specification C842 contains application procedures for interior gypsum plaster.

1.2 The values stated in either inch-pound or SI (metric) units 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 independent of the other. Values from the two systems shall not be combined.

1.3 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.