These are not rafters ghosting, they're spread out "blotches" or streaking. Thermal tracking/ghosting? To visualize thermal bridging and the resulting ghosting patterns that emerge, let’s think about a house in the winter time. Sometimes, uneven heating of the ceiling where joists or obstructions alter … 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. They are actually caused by the slow buildup of dust, soot, and sometimes mold, and there are several root causes behind the buildup. save. 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. You could see a spot, or a line following a ceiling joist. 1. The stains outline the stud framing, and they even seem darker where there are nails in the drywall. House we bought has thermal tracking on the ceilings, quite a but actually. Ceilings are the usual crows foot or slap brush texture. Thermal tracking/ghosting? Lightbulbs "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. View Profile View Forum Posts Private Message Member Join Date Aug 2007 Location Memphis TN. 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. share. 01-12-2013, 04:50 PM #6. 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). 1 comment. Close. What’s with those ghostly gray stains on the outside corners of the ceiling and walls? These marks are often small airborne particles that stick to the surface and form a stain. 1/2. Posted by 4 hours ago. Thermal tracking is when dark stains appear on walls or ceilings along the lines of the framing. Thermal tracking stains often show up as lines or as stains with straight edges. This phenomenon is also called ghosting and thermal bridging. Thermal imaging cameras are excellent at detecting the missing insulation that leads to ghosting. 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. Black stains – or ghosting -on ceiling indicate heat loss and a poorly insulated ceiling. 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. Custom Bathroom Remodeling. Billy Stephens. 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