What’s with those ghostly gray stains on the outside corners of the ceiling and walls? The Ghost in the Room “Ghosting,” to a builder or painter, refers to apparently unexplainable dark streaks or patches on walls, ceilings, and carpets.A séance won’t help you deal with these ghosts. Thermal imaging cameras are excellent at detecting the missing insulation that leads to ghosting. House we bought has thermal tracking on the ceilings, quite a but actually. Thermal tracking/ghosting? View Profile View Forum Posts Private Message Member Join Date Aug 2007 Location Memphis TN. Custom Bathroom Remodeling. 1 comment. Understanding the problem. These are not rafters ghosting, they're spread out "blotches" or streaking. Thermal Tracking, Bridging, Ghosting: How to Diagnose Indoor Wall or Ceiling Ghosting Stains, Building Air Leaks, & Heat Loss. Could this be ghosting? Thermal tracking/ghosting? Ghosting/thermal tracking I have a lot of dark lines on the 20-year old ceiling of a single storey extension with a no access loft space. Looks sooty around the light and you can also see the faint outline of light box starting to form. When I touch where the shadowing is, it's cooler than the surrounding area. Sometimes, uneven heating of the ceiling where joists or obstructions alter … 01-12-2013, 04:50 PM #6. Most ghostly outlines like this are caused by soot in the air. save. "Ghosting" is particulates sticking to the wall or ceiling in areas that are colder than others due to thermal bridging of the framing and therefore slightly damp from condensation. Recessed light on a slanted cathedral ceiling in my home. Quick Tip #36: Ghost Stains on Walls, Ceiling. share. Start your bathroom remodeling project with Mosby’s certified designers and architects.They begin the design process by learning about your exact needs and desires. The temperature differences are due to missing insulation (warmer in this case because the inspection was performed in the summer). Re: Ghosting of ceiling joist in tight home Hi, You've got gaps around the insulation down in the ends of those truss bays at the eaves. You could see a spot, or a line following a ceiling joist. To visualize thermal bridging and the resulting ghosting patterns that emerge, let’s think about a house in the winter time. Be it a hall bathroom, a master bathroom or an accessible bathroom, our designers will make sure it looks the way you desire and performs above and beyond your expectations. Thermal tracking stains often show up as lines or as stains with straight edges. Lightbulbs Posted by 4 hours ago. This phenomenon is also called ghosting and thermal bridging. Close. The stains outline the stud framing, and they even seem darker where there are nails in the drywall. Ceilings are the usual crows foot or slap brush texture. Thermal tracking is when dark stains appear on walls or ceilings along the lines of the framing. Black stains – or ghosting -on ceiling indicate heat loss and a poorly insulated ceiling. They seem to follow the lines of the joists - hence me thinking they are ghosting. These marks are often small airborne particles that stick to the surface and form a stain. 1/2. Notice how the colored spots in the thermal imaging on the left match the discolored ceiling on the right. Tighten up the gaps and get the insulation flat on the ceiling, so no air is blowing in around it, and put some insulation accross the lowest couple of feet of the bottom truss chord (make sure to leave a gap between the insulation and the underside of the roof). Billy Stephens. 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