Drainage Strip
for Dryvit & EIFS
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Drainage Strip Keeps EIFS Dry

Synthetic stucco, also known as EIFS or Dryvit, has been providing continuous insulation since the 1970s. An important lesson learned is that drainage is required behind the rigid foam board to prevent entrapped moisture problems. Drained EIFS can be used in nearly every climate. Drainage is created in two ways

  • Adhesive applied in vertical strips creates a drainage gap in the field of the wall
  • An EIFS drainage strip at terminations protects this air gap from being sealed off

A 1/8" gap created by the drainage strip keeps Dryvit and other EIFS assemblies dry. 

Water-Managed EIFS

Corrugated Lath Strip EIFS Drainage Strip

Corrugated Lath Strip™ ensures a 1/8" gap for drainage in water-managed EIFS walls. Corrugated Lath Strip prevents the accidentally sealing off the drainage gap, ensuring that your high-performance walls stay dry and healthy. Available in black and translucent white.


Can I use Corrugated Lath Strip with Warrantied EIFS Assemblies?
Yes! Please contact us at 800-879-3348 today to learn about manufacturer warrantied drainable EIFS with Corrugated Lath Strip

Do I need to notch the foam insulation to fit the Corrugated Lath Strip?
No. The Corrugated Lath Strip maintains a 1/8" drainage gap, which is the minimum to ensure a capillary break. The adhesive or fastener patterns need to maintain this same gap throughout the wall in order to be a drainable EIFS assembly. Using Corrugated Lath Strip ensures the minimum drainage gap while keeping the foam panels in plane.

How is Corrugated Lath Strip Installed?
Install at terminations, window and door heads, with dime-sized dabs of construction adhesive or staples/nails every 2 ft.

Technical Expertise & Ordering

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