Homeowners often misidentify black stains on walls as mold, but these are usually soot marks resulting from thermal bridging or ghosting. This process occurs when warm, humid air condenses on cool surfaces, causing dust and particulates to accumulate in streaks. While ghosting is generally not a health risk, it signifies potential issues with insulation and moisture control. Understanding ghosting allows homeowners to address aesthetic concerns and implement strategies to mitigate its appearance, ensuring a better living environment without worrying about harmful mold.
"Ghosting occurs when damp air and airborne particulates, such as dust or soot, condense on drywall in streaks or lines. This phenomenon is typically caused due to thermal bridging."
"While ghosting is not harmful, it can be a nuisance. Understanding the causes helps homeowners correct the issue and prevent future occurrences."
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