Lathing may not cover or conceal which elements without building official approval?

Lathing may not cover or conceal which elements without building official approval?

• A. Reinforcing steel
• B. Electrical conduit
• C. Plumbing lines
• D. Insulation

Answer: (A)

Lathing must not conceal structural components that require inspection or protection. Reinforcing steel is a critical part of the building’s structural system; if plaster or lath hides it, inspectors can’t verify proper placement, cover depth, or condition, and moisture or corrosion could develop unnoticed, compromising safety. For that reason, concealing reinforcing steel without building official approval is not allowed. Non-structural items like electrical or plumbing can typically be concealed in walls if installed per code and inspected as required, but the reinforcing steel requires explicit approval before hiding it.

Lathing must not conceal structural components that require inspection or protection. Reinforcing steel is a critical part of the building’s structural system; if plaster or lath hides it, inspectors can’t verify proper placement, cover depth, or condition, and moisture or corrosion could develop unnoticed, compromising safety. For that reason, concealing reinforcing steel without building official approval is not allowed. Non-structural items like electrical or plumbing can typically be concealed in walls if installed per code and inspected as required, but the reinforcing steel requires explicit approval before hiding it.