Insulation holes

Exterior · Masonry · printed page 313 (PDF page 314)

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Book index entries

Insulation – Holes in Siding UFFI Insulation Holes in Siding

Text in the illustration

a uniform pattern of patched holes on exterior surfaces usually mean that some kind of insulation (e.g. cellulose, mineral wool or urea formaldehyde) has been added
the plugged holes may only be found in some walls or portions of walls

Generated explanation

The illustration shows a house with horizontal lap siding, a steep gable roof, windows, and a partially visible exterior door. Repeated small patched holes form regular rows across the gable-end siding, including above and below the windows. An arrow identifies one of these holes, and the annotation explains that this pattern usually indicates insulation added through the exterior wall surface. The notes also explain that plugged holes may occur only on some walls or portions of walls; no corresponding holes are illustrated on the adjacent wall.

Components

horizontal lap siding exterior walls gable end plugged insulation access holes gable roof windows window trim window sills exterior door

Materials

horizontal siding cellulose insulation (mentioned)mineral wool insulation (mentioned)urea formaldehyde insulation (mentioned)