In early stages brown mold may look like spots or discolouration.
Brown mold spots on ceiling.
In this case it was due to areas of missing insulation in the attic.
Mold damage aside from water damage mold growth on your ceiling is also a likely cause of the brown spots.
Cigarette smoke can cause staining via the same principle as ghosting.
When a portion of the ceiling stays damp for an extended period of time a yellowish brown mold stain can form overhead.
There are 3 most common types of ceiling stains and they are 1.
Once mold shows up on your ceiling it isn t long before a small patch evolves into a thriving colony.
How to safely clean mold off of a ceiling.
To test for mold touch the spots with a cotton swab that has been dipped in household bleach.
The soot attaches to cold spots on the ceiling.
I suggest you call an exterminator.
Walls are also common habitat for brown mold to grow especially in damp or dark spaces such as ceiling room and basement.
If there is plumbing problem that happens inside the wall structure mold will grow from the inside and slowly spread to the outer part if not removed.
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.
Ceiling stains can draw eyes away from even the most beautiful living room dining or kitchen.
Some species of brown mold may even grow into thicker mushroom like blobs.
Cleaning soot from ghosting is extremely hard.
Brownish spots on the ceiling can be fluids gross i know from the bugs.
Mold is often dark but it can come in other colors.
Mold may not seem very threatening but the danger.
Ceiling mold growth is typically black.
Your best option for a base coat to cover water stains on the ceiling is an oil based mold resistant stain blocking primer in a shade closely matching that of the existing ceiling.
Depending on the colour of the surface it is growing on it may appear brown or nearly black.
Sometimes the water droplets dry out and only leave behind the stains while in other cases the dripping seeps through the ceiling and you have a leaky ceiling with brown stains.
The second cause of ceiling discoloration may be related to moisture but is not directly caused by it.
Typically your only recourse is to repaint.
Left untreated the mold stain may grow and become darker over time.
It may not have been mold.