Exterior Insulation and Finish System (EIFS) is a popular choice for building exteriors due to its continuous insulation value and versatility in creating various textures and finishes.
However, one important consideration when using EIFS is managing moisture ingress, especially in areas with high rainfall. This blog post will discuss the importance of water management in EIFS and highlight the role of Corrugated Lath Strip in ensuring effective drainage and preventing moisture-related issues.
Water Management in EIFS:
EIFS is designed to provide continuous insulation, but it is crucial to address the potential for moisture ingress. In areas with heavy rainfall, some water may penetrate past the insulation panels, leading to potential damage and mold growth. To mitigate this risk, water-managed EIFS incorporates a small drainage gap behind the continuous insulation to allow for the drainage of incidental moisture. The Role of Corrugated Lath Strip™: Corrugated Lath Strip™ plays a vital role in ensuring effective drainage in EIFS terminations. By adhering or fastening the Corrugated Lath drainage strip at terminations, the continuous insulation can be applied over it using standard adhesives or fasteners. The strip’s 1/8″ profile is designed to fit the drainage depth of standard EIFS adhesive patterns, preventing the panels from accidentally sealing off the drainage gap.
Benefits of Corrugated Lath Strip™:
1. Prevents Entrapped Moisture: Corrugated Lath Strip™ has been used successfully with EIFS for over 25 years. Its presence ensures that moisture does not become trapped within the system, reducing the risk of damage and mold growth.
2. Reliable Drainage: The strip’s design allows for predictable and clear drainage, ensuring that any incidental moisture is effectively drained away from the building’s exterior.
3. Easy Installation: Applying the Corrugated Lath drainage strip is a straightforward process. It can be adhered or fastened at EIFS terminations, and the continuous insulation can be installed over it using standard adhesives or fasteners. Conclusion: When using EIFS in areas with high rainfall, proper moisture management is essential to prevent potential damage and mold growth. Corrugated Lath Strip™ from Premium Stucco Vancouver offers a reliable solution for ensuring effective drainage in EIFS terminations. By incorporating this strip into the installation process, builders can prevent entrapped moisture and reduce the risk of callbacks. Specify MTI to keep walls dry and ensure the longevity of your EIFS system.

