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Photograph of dirt from a pet smudging a wall Indoor Wall or Ceiling Stains Mistaken for Ghosting
Building stains from other causes than thermal tracking

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Indoor stains in buildings mistaken for thermal tracking or ghosting:

Making note of the size, shape, location an d pattern of indoor stains can quickly sort out the probable cause of the staining. This article provides examples of indoor stains on walls or ceilings that some readers mistook for thermal tracking or ghosting.

This article series describes & diagnoses the cause of various interior wall and ceiling stains and explains how to recognize thermal tracking, (also called ghosting or ghosting stains or thermal bridging stains), building air leaks, and building insulation defects.



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Examples of Stains that are NOT Thermal Tracking, Bridging or Ghosting

Dirty HVAC duct work, lack of air filter maintenance, or furnace malfunctions can all be indicated by black stains that appear around warm or cool air delivery registers in building ceilings or walls. (This is usually a deposition of house dust, rarely is it mold, and rarely is it related to thermal tracking. details about these stains at registers are given
at STAINS at HVAC REGISTERS

Photograph of dirt on a ceiling at an HVAC supply register

In buildings where pets are or have been housed, smudge marks on walls and at doors and door trim are sometimes mistaken for thermal tracking - they are not.

Photograph of dirt from a pet smudging a wall

See STAINS ANIMAL / PETS in BUILDINGS for details.

Below are stains that do appear in regular lines but are mapped to the use of candles, particularly scented candles.

Photograph of candle soot smudging a wall

We welcome more thermal tracking, soot tracking, air bypass leaks, and similar photos of indoor stains as well as text suggestions to expand this detail and would be glad to credit contributors.

Photograph of candle soot smudging a wall

What about the parallel wall stains in the photo just below? The parallel wall stains in the photograph below were in a series of interior wall & ceiling stain photographs submitted by a reader and discussed at THERMAL TRACKING GHOSTING FAQs

Parallel dark stains on walls that are just shadows (C) InspectApedia.com reader photo

Parallel dark stains on walls that are not thermal tracking: what about the photograph just above? I think these are not thermal tracking stains, for the following reasons:

Use this link CONTACT us to send images.

Article Series Contents

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Continue reading at STAINS on INDOOR SURFACES, PHOTO GUIDE or select a topic from closely-related articles below, or see our complete INDEX to RELATED ARTICLES below.

Or see MOLD APPEARANCE - WHAT MOLD LOOKS LIKE

Or see STAINS ANIMAL / PETS in BUILDINGS

Or see STAIN DIAGNOSIS on BUILDING INTERIORS - home

Or see GHOSTING DARK STREAKS or LINES: CAUSES

Suggested citation for this web page

STAINS MISTAKEN for GHOSTING at InspectApedia.com - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice.

INDEX to RELATED ARTICLES: ARTICLE INDEX to BUILDING STAINS

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