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A heat leak refers to the unintended loss of heat from a building or system, typically due to poor insulation, air leaks, or inefficient materials. In home inspections and energy efficiency assessments, heat leaks are a major concern because they lead to higher energy costs, reduced comfort, and increased strain on heating systems.
Common Causes of Heat Leaks:
- Gaps and cracks around windows, doors, and vents
- Poor insulation in walls, attics, and basements
- Air leaks around electrical outlets, plumbing penetrations, and ductwork
- Single-pane or poorly sealed windows
- Unsealed attic access points
- Chimneys and fireplaces without proper dampers
Home inspectors and energy auditors use thermal imaging cameras and blower door tests to identify heat leaks, helping homeowners improve energy efficiency and comfort.
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