Installing Stucco Lath A Step-by-Step Guide
Stucco is a popular, durable, and attractive exterior finish for homes, providing not only aesthetic appeal but also protection against the elements. One essential component of the stucco system is the lath, which serves as a foundational layer for the stucco to adhere to. Installing stucco lath may seem daunting at first, but with the right tools and a methodical approach, you can achieve a professional finish.
1. Gather Your Materials and Tools
Before starting, gather the following materials and tools galvanized metal lath or scratch coat lath, galvanized nails or screws, a hammer or nail gun, a measuring tape, a utility knife, a chalk line, and safety glasses. Ensuring you have everything on hand will make the installation process smoother.
2. Prepare the Wall Surface
Start by preparing the wall surface where the lath will be installed. If you’re applying stucco over a wooden surface, ensure that the wood is clean and free from rot. For masonry surfaces, check for loose debris and clean the area as needed. If the wall is particularly uneven, consider using building paper or waterproof barrier to ensure a smooth application.
Using your measuring tape, determine the height and width of the wall sections where you'll be placing the lath. Use a chalk line to mark the area for accuracy. Cut the lath to size with a utility knife, ensuring the edges are clean to prevent any gaps that could affect the stucco application.

4. Install the Lath
Begin installing the lath from the bottom up. Start at the base of the wall, securing the lath with nails or screws every 16 inches on center. If you're using metal lath, be sure to overlap the edges by at least an inch to create a sturdy surface for the stucco to adhere to. Use horizontal strips first and then vertical strips to create a grid, maintaining stability and support.
5. Ensure Proper Fastening and Alignment
As you install each piece, ensure it is level and aligned properly. The lath should be tightly secured to the wall but not overly strained. This alignment is crucial as it directly affects the appearance of the final stucco finish.
6. Final Checks and Preparations
Once all the lath is installed, conduct a thorough inspection to ensure there are no loose sections or gaps. Repair any problematic areas promptly. After confirming that everything is securely fastened and properly aligned, you’re ready to apply the stucco coat.
Conclusion
Installing stucco lath is a critical step in achieving a beautiful stucco finish on your home. By following these steps carefully and using the right materials, you can create a strong foundation for your stucco that not only looks great but will also stand the test of time. Whether you’re a DIY enthusiast or a seasoned contractor, the satisfaction of a well-installed stucco lath is well worth the effort.