B3/61 Contractor Trade Practice Exam 2026 - Free Contractor Trade License Practice Questions and Study Guide

Keeping the bottom edge of the weep screed a safe distance above the ground helps prevent moisture from wicking into the wall and protects against pests while allowing proper drainage away from the foundation. The standard minimum clearance is four inches, which provides enough gap for splash and ground moisture to stay away from the siding. Options with smaller clearances risk moisture intrusion, while larger clearances exceed the typical requirement. So the four-inch distance is the correct minimum.