Soft or uneven floors, squeaking boards, or a musty smell can all point to problems beneath your home. The subfloor plays a critical role in supporting the structure above it, and when defects develop, they can lead to safety risks, costly repairs and long-term damage.
Common subfloor defects include termites, moisture issues, poor ventilation, movement and structural deterioration. Because this area is hidden from view, problems often go unnoticed until they become severe.
In this guide, we explain what the subfloor and subfloor void are, why inspectors need access to this area, and the most common subfloor defects — including how to identify, fix and prevent them.
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