Inspecting walls

Interior · Walls · printed page 354 (PDF page 355)

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Book index entries

Inspecting Interior Walls

Text in the illustration

shining a flashlight parallel to wall surfaces highlights patches and other flaws
tapping or pushing on older plaster walls can reveal loose or bulging plaster
drywall and plaster walls
plaster walls

Generated explanation

The illustration shows two methods for inspecting interior wall finishes. On the left, a flashlight held at a shallow angle casts light along a drywall or plaster surface to highlight patches and surface irregularities. On the right, a hand taps or pushes an older plaster wall, with cracks and motion marks drawn around the contact area. The annotation explains that this technique can reveal loose or bulging plaster.

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