What is the minimum height for weep screed above the earth?

The minimum height for weep screed above the earth should indeed be 4 inches. This standard is primarily established to ensure proper drainage and to prevent moisture-related issues in the wall assembly of a structure.

Weep screeds are used in stucco or masonry wall systems to direct water that may infiltrate the wall toward the exterior, preventing it from pooling against the building. By raising the weep screed to a minimum of 4 inches above the finished grade, the design ensures that water is diverted effectively while also providing a protective barrier against soil and vegetation that may retain moisture, thus reducing the risk of water damage and promoting the longevity of the building materials.

This 4-inch guideline is crucial in meeting building codes and best practices in construction, playing a vital role in the overall durability and performance of exterior wall systems.