Lath

Definition

A wood strip, metal mesh, or gypsum board which acts as a backing and/or reinforcing agent for the plaster scratch coat or initial mortar coat. See Furring.

Purpose

Lath serves as a support and reinforcement for plaster or mortar applications, ensuring a stable and durable finish. It provides a surface for the plaster to adhere to and helps prevent cracking and detachment.

Examples of Use

• Plaster walls: Used as a backing for plaster on interior walls and ceilings.
• Stucco applications: Serves as a base for stucco on exterior walls.
• Tile installations: Provides support for mortar in tile installations.

Related Terms

• Furring: Strips of wood or metal used to level or raise surfaces, providing a base for lath or other materials.
• Scratch Coat: The initial layer of plaster or mortar applied to a lath base.
• Reinforcement: Material used to provide additional strength and stability.

Notes

• Different types of lath are used depending on the application, including wood, metal mesh, and gypsum board.
• Proper installation is crucial to ensure the durability and stability of the finished surface.
• The choice of lath material can affect the performance and longevity of the plaster or mortar application.