Drying potential of walls

Insulation · Walls Above Grade · printed page 251 (PDF page 252)

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Drying Potential of Walls Wall – Drying Potential

Text in the illustration

a wall system with a vented rain screen is more likely to have good drying potential than a face-sealed wall system
be particularly cautious if you see mold, mildew and rust in electrical boxes and evidence of condensation below windows in a face-sealed exterior wall
face-sealed wall system (stucco exterior)

Generated explanation

The illustration shows an interior room with a window, an electrical receptacle, and a cutaway at the edge of an exterior wall identified as a face-sealed stucco wall system. Irregular discolored areas extend down the interior wall beneath the window corners. Arrows direct attention to the area below the window and the electrical box as locations to check for moisture-related warning signs. The annotations advise caution when mold, mildew, rust in electrical boxes, or condensation below windows is found in a face-sealed exterior wall. They also explain that a vented rain screen wall generally has better drying potential than a face-sealed wall system.

Components

face-sealed exterior wall stucco exterior finish window window trim interior wall finish electrical receptacle electrical box door

Defects shown

Materials

stucco wood glass