Moisture
Persistent moisture can contribute to wood deterioration, corrosion, odors, or other crawlspace issues.
Supports and shimming
Improper, deteriorated, or displaced supports can contribute to floor movement and localized settlement.
Beams and joists
Damage or deflection in beams and joists can affect floors even when the soil-support system is not the only issue.
Inspection advantage
Because components are accessible, a careful crawlspace inspection can help separate framing problems from support or soil-related issues.