HAAG Certified Reviewer

Which of the following types of exterior cladding incorporates a metal lath system?

1. Stucco

2. Brick veneer

3. EIFS

4. Steel siding

The correct answer is: Stucco

Stucco is the correct answer because it typically utilizes a metal lath system as part of its application process. The metal lath serves as a framework that provides support for the stucco mixture, allowing it to adhere properly and ensuring a durable finish. This system helps to prevent cracking and allows for better distribution of weight. Other types of cladding, such as brick veneer, rely on a different support structure and generally do not use a lath system. Instead, brick veneer attaches directly to the building structure with ties and mortar. Similarly, EIFS (Exterior Insulation and Finish System) can use a variety of backing materials, including foam board, rather than a traditional metal lath system, and steel siding consists of panels that clip or snap together without the necessity of lath. Therefore, the unique requirement for a metal lath in stucco makes it the appropriate choice in this context.