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Efflorescence occurs when moisture seeps through masonry, carrying dissolved salts that crystallize on the surface. This indicates water migration through basement walls, a sign of moisture intrusion that can lead to deterioration, mold growth, and air quality issues. NHIE Domain 1 requires inspectors to recognize such conditions and recommend corrective measures such as improved drainage or waterproofing. Dismissing efflorescence as purely cosmetic ignores the underlying moisture concern. Proper reporting should emphasize the potential for ongoing water infiltration and the need for evaluation.

Identifying uninspected components clarifies the scope of the inspection and manages client expectations. NHIE Domain 2 stresses transparency and defensibility in reporting. If areas were inaccessible or systems inoperable, documenting these limitations protects the inspector from liability and informs the client about potential unknowns. This ensures the report is accurate, professional, and honest about its boundaries.

Backdrafting occurs when combustion gases, instead of venting outdoors, flow back into the home. This introduces carbon monoxide and other harmful gases into the living space, creating an immediate life-safety risk. NHIE Domain 1 tasks inspectors with identifying dangerous combustion appliance conditions. Reporting backdrafting is critical, with a recommendation for immediate evaluation and correction by a qualified professional. Safety always takes precedence over efficiency or cosmetic issues.

Weather affects inspection results. For example, dry conditions may prevent detection of roof or drainage leaks. NHIE Domain 2 stresses transparency and defensibility. Documenting weather provides context for findings and clarifies limitations, ensuring clients understand that some issues may not be visible under current conditions.

Reports organized chronologically (in the order inspected) can be difficult for clients to follow. NHIE Domain 2 emphasizes usability and logical structure. Organizing by system (roofing, plumbing, electrical) makes it easier for clients and contractors to locate relevant information. This structure is more professional and client-friendly.