Home Inspector Bloomington MN
Structure defect

Rotted Sill Plate

The wood sill plate atop the foundation is soft, rotted, or insect-damaged.

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HomeDefect LibraryRotted Sill Plate
What it is: The wood sill plate atop the foundation is soft, rotted, or insect-damaged.

Why it matters

A compromised sill plate weakens the connection between framing and foundation and can spread to the structure.

Rotted Sill Plate during a Bloomington MN home inspection

Why it's common in Bloomington

Moisture wicking from damp Bloomington foundations and grade contact rots sill plates over time.

Signs to watch for

  • soft or crumbling sill wood
  • staining at the foundation top
  • insect frass near the sill

What we check during the inspection

The inspector probes accessible sill plate areas for softness and moisture damage.

How it's typically corrected

A contractor replaces the damaged sill plate sections and corrects the moisture source.

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