Metal Lath

Definition

A steel mesh used primarily as a base for the application of plaster.

Purpose

Metal lath provides a stable, reinforcing base for plaster, ensuring it adheres properly and maintains structural integrity. It is commonly used in wall and ceiling construction for both interior and exterior applications.

Examples of Use

• Plaster walls: Reinforcing interior walls for smooth plaster finishes.
• Stucco exteriors: Providing a base for applying stucco to exterior walls.
• Fireproofing: Using metal lath to support fireproofing materials on structural steel elements.

Related Terms

• Expanded Metal Lath: A type of metal lath made by slitting and stretching sheet metal to form a mesh.
• Plaster: A building material used for coating walls and ceilings, providing a smooth finish.
• Stucco: A durable, decorative coating applied to exterior walls.

Notes

• Proper installation of metal lath is crucial to ensure the plaster adheres well and prevents cracking.
• Metal lath must be securely fastened to the underlying structure to provide adequate support.
• Different types of metal lath are available, including self-furring lath, which has built-in spacers to create a uniform surface for plaster application.