Weep Screed
A weep screed is a metal or plastic trim installed at the base of stucco walls to allow trapped moisture to drain out of the wall assembly.
What is a Weep Screed?
A weep screed is a trim component installed at the bottom edge of stucco or plaster walls that allows moisture to escape from behind the finish system.
It also helps create a clean termination point for the stucco while maintaining proper clearance above grade or paved surfaces.
Why Weep Screeds Matter
Drainage: They help release moisture that gets behind the wall finish.
Durability: Proper drainage reduces the risk of rot, mold, and hidden wall damage.
Code compliance: Many stucco assemblies require a weep screed as part of the system.
Common Installation Considerations
- Proper placement at the bottom of the wall assembly
- Correct clearance from soil or hardscape
- Integration with weather-resistive barriers and flashing
- Keeping drainage paths open and unobstructed
Common Mistakes
Installing too low: Contact with soil or paving can block drainage and wick moisture.
Blocking the screed: Landscaping, sealants, or finishes can prevent water from escaping.
Treating it as decorative only: It is a functional moisture-management component, not just trim.
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