Foundation Planting and Weep Screed Clearance: Avoiding Moisture and Termite Issues

After removing trees near a San Diego dining/kitchen window, the homeowner wants low-water plants, but discovers a rusted weep screed and brick against the foundation.

Weep Screed Function

The weep screed (metal flashing at stucco base) drains moisture from behind the stucco. Code requires 4 in vertical clearance between screed bottom and grade.

Current Problems

• Brick covers screed in spots → traps moisture, invites termites.
• Rusted screed: if metal flakes off, replace that section.

Correct Fix

1. Remove all brick against foundation.
2. Expose 4+ in of screed; replace corroded sections.
3. Grade soil 2% slope away from house for 5 ft.
4. If pouring concrete walkway: leave 6 in horizontal gap between walkway and foundation for drainage.
5. Tell concrete contractor explicitly—most will cover the screed unless directed otherwise.

Termite Note

Annual professional treatment is the only reliable prevention in San Diego. Brick vs. concrete at grade makes little difference if screed is covered.

Planting

Use drought-tolerant shrubs/perennials (see Vegetation Guide) in the new bed, keeping mulch 6 in from foundation.