What Is Metal Lath?
Metal lath is a versatile building material, commonly used as a base for plaster or stucco applications. It is made by expanding, perforating, or pressing metal sheets to create a network of small, uniform openings. This rough texture allows materials like plaster or stucco to adhere securely, making it ideal for reinforcing walls, ceilings, and other surfaces.
Types of Metal Lath: There are several types of metal lath, each suited to specific applications:
- Expanded Metal Lath: This type is created by cutting and stretching a sheet of metal, forming a diamond-shaped pattern. It’s the most common type used for plastering.
- Ribbed Metal Lath: This variant includes additional ribs or grooves that provide extra strength, making it suitable for heavier plaster coats or larger wall areas.
- Self-Furring Lath: This type includes built-in dimples or grooves that hold the lath away from the surface, allowing the plaster to envelop the entire lath, providing a stronger bond.
Why Use Metal Lath?
The main purpose of metal lath is to act as a supportive base for plaster or stucco. The open design ensures that the plaster bonds firmly, reducing the risk of cracks or detachment. It is typically made from galvanized steel to prevent rusting, ensuring longevity even in outdoor environments.
