Drip screed may be used at foundations and at horizontal, external corners of soffits. Which statement is true?

Drip screed may be used at foundations and at horizontal, external corners of soffits. Which statement is true?

• A. Foundations
• B. Horizontal external corners
• C. Both foundations and horizontal corners
• D. Neither

Answer: (C)

Drip screed protects the plaster by creating a deliberate drip edge where moisture would otherwise wick into or stain the finish, and it also gives a clean, defined termination for the plaster at vulnerable edges. At foundations, exterior plaster sits near moisture-prone joints and capillary action can lift water up the wall; a drip screed provides a small lip that directs water away and stops seepage right at the base, while giving a neat edge against the foundation. At horizontal external corners of soffits, water running along the underside of the soffit can migrate toward the wall; placing a drip screed there creates a controlled drip line and helps shed water away from the corner, preserving the plaster finish and reducing edge deterioration. Because both locations involve moisture movement and edge control, using a drip screed in both cases is appropriate.

Drip screed protects the plaster by creating a deliberate drip edge where moisture would otherwise wick into or stain the finish, and it also gives a clean, defined termination for the plaster at vulnerable edges. At foundations, exterior plaster sits near moisture-prone joints and capillary action can lift water up the wall; a drip screed provides a small lip that directs water away and stops seepage right at the base, while giving a neat edge against the foundation. At horizontal external corners of soffits, water running along the underside of the soffit can migrate toward the wall; placing a drip screed there creates a controlled drip line and helps shed water away from the corner, preserving the plaster finish and reducing edge deterioration. Because both locations involve moisture movement and edge control, using a drip screed in both cases is appropriate.