Basement leakage clues – rot, stains or water marks

Interior · Wet Basements and Crawlspaces · printed page 373 (PDF page 374)

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Book index entries

Basement – Rot, Stains or Water Marks

Text in the illustration

Basement leakage clues − rot, stains or water marks check for rot at joist ends and sill due to poor ground clearance check for water marks along studs (stains along studs can also be a result of thermal bridging, if the wall is insulated) check for stains at corners raised storage stains/dampness on carpet or slab damaged boxes
check for rot at joist ends and sill due to poor ground clearance
check for water marks along studs (stains along studs can also be a result of thermal bridging, if the wall is insulated)
check for stains at corners
raised storage
stains/dampness on carpet or slab
damaged boxes

Generated explanation

A cutaway basement shows wood floor joists and a sill above a masonry foundation wall, an adjacent finished wall, and carpet partially lifted from a floor slab. Callouts identify joist ends and the sill as locations to check for rot associated with poor ground clearance. Shaded areas indicate stains on the masonry wall, at a finished-wall corner, and on the carpet or slab. Another annotation advises checking for water marks along studs while noting that thermal bridging can also cause stud-line staining in an insulated wall. Water-damaged boxes and raised storage are illustrated as additional basement leakage clues.

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2090

Basement leakage clues – crumbling plaster, drywall or masonry

· p. 373

The illustration shows a basement corner with exposed masonry foundation wall, drywall over studs, and plaster applied directly to the wall. Spalling near the bottom of the exposed masonry is attributed to moisture movin