The soot attaches to cold spots on the ceiling.
Mold spots on basement ceiling.
In this case it was due to areas of missing insulation in the attic.
I suggest you call an exterminator.
If it doesn t it s likely dirt or a similar looking stain.
Attics are also havens for orange mold growth because they collect warm air and moisture that rises from the rest of the house and they usually have exposed rafters.
Spores land on the surface germinate and grow.
Finally your kitchen is a hotbed for orange mold growth.
Ceiling mold growth is typically black.
It may not have been mold.
Open a window and or keep a fan.
Mold though eats into its base which makes it harder to remove and sometimes grows upward.
This has got to be the most disgusting type of ceiling stain if you ask me.
Brownish spots on the ceiling can be fluids gross i know from the bugs.
Mildew s white gray spots spread outward not upward remaining on the surface.
This is for sure black mold on the osb.
Typically your only recourse is to repaint.
The basement ceiling is one of the premier spots to find mold in your house because mold forms in cold damp areas.
Wood in the floor and especially in the ceiling above the stove are vulnerable to orange mold growth.
I tested them with a mold test kit and it turned out to be a black green mold.
How to identify an up close photo of mold on a ceiling.
Then when i inspected the house i saw these same black spots in the basement and attic.
How to diagnose stains and debris at ceiling and wall heating or cooling air supply registers dark stains debris around an air supply register may not be mold but might mean trouble mold can also be found on and around hvac air supply registers actual ceiling mold contamination examples questions answers about stains on and.
The lack of ventilation and sunlight that s common in basement spaces provides a perfect environment for mold growth.
Cigarette smoke can cause staining via the same principle as ghosting.
Mold and mildew may start as early as 24 to 48 hours after the surface has been dampened.
Remove mold stains from walls.
After dealing with a lot of coughing and trouble breathing i found out from the doctor that i have mold micro toxins in my blood.
If your ceiling is moldy you may have a water leak in it or behind the walls.
How to diagnose ceiling stains at hvac air supply registersr.
Mix a solution of one part bleach to three parts water in a spray bottle and thoroughly saturate the moldy areas of the wall.
However that doesn t mean that you should resign yourself to having a moldy ceiling.
If the spot fades fast it s probably mold.
Mold is pretty easy to spot on your ceiling and there are a few causes of mold growth on your ceiling.
We had a wasp problem a while back and the exterminator asked if there were any brown spots on the walls or ceiling explaining that this is a sign of infestation.