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Mold and water damage decisions are easier when you understand the moisture pattern, affected materials and order of work. Use this guide as a practical starting point, then request an inspection for property-specific advice.
Roof Leaks
Small flashing or penetration leaks can wet decking and insulation before a ceiling stain appears below.
Warm Indoor Air
Air leaking through ceiling openings can carry moisture into a cooler attic where it condenses on nails, decking and framing.
Bathroom Exhaust And Ventilation
Fans that terminate in the attic and blocked ventilation paths can concentrate moisture. The source should be corrected alongside treatment.

