American Home Inspectors Training (AHIT) Practice Test 2025 - Free Home Inspector Practice Questions and Study Guide

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What material is most often associated with efflorescence?

Wood

Brick

Efflorescence is a phenomenon commonly seen on masonry surfaces, particularly brick. It occurs when water-soluble salts within the masonry migrate to the surface as water evaporates, leaving behind a white, powdery residue. This happens particularly in environments where moisture is present, which can cause the salts to dissolve and then re-deposit as the water evaporates.

Bricks, being porous and often used in exterior applications, are particularly susceptible to this process, especially if there are issues with moisture management in or around the structure. Other materials listed, such as wood, vinyl, and drywall, do not typically exhibit efflorescence because their composition and properties do not support the movement of soluble salts to the surface in the same way.

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Vinyl

Drywall

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