Ceiling Lath

Definition

Ceiling lath consists of sheets of expanded metal, gypsum, or wood slats that are attached to a ceiling to provide a surface for plastering.

Purpose

The purpose of ceiling lath is to create a base layer onto which plaster can be applied. It ensures proper adhesion of the plaster and helps to distribute it evenly across the ceiling surface.

Examples of Use

1. Traditional Plaster Ceilings: Older buildings often have wooden lath strips nailed to the ceiling framing, providing a base for plaster.
2. Metal Lath: In modern applications, metal lath is used in commercial and residential buildings for reinforced plaster ceilings.
3. Gypsum Lath: This material is used as a more contemporary and uniform surface for applying plaster.

Related Terms

• Plaster: A mixture applied over lath to create a smooth, durable ceiling surface.
• Drywall: A modern alternative to plaster, often used without lath.
• Screed: A tool used to smooth and level plaster or concrete.

Notes

• The type of lath used can affect the finish and durability of the plaster ceiling.
• Proper installation of lath is critical to prevent plaster cracks and ensure longevity.