Local conditions

Negative grading around foundations

Negative grading means soil slopes toward the house. It can send roof and yard water directly to the foundation.

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Crawl space foundation supports under a home

Quick answer

Negative grading around foundations

Negative grading means soil slopes toward the house. It can send roof and yard water directly to the foundation.

What to watch

  • water pooling beside the home
  • mulch or soil washing toward walls
  • wet crawl space edges
  • leaking foundation cracks

What to check

  • slope beside each wall
  • hardscape draining toward the home
  • buried or short downspout outlets

Why timing matters

Take photos when the symptom appears and again after weather changes. Timing can help separate drainage, humidity, drought, and structural movement clues.

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