A house in a humid tropical area for instance will develop mold more readily than a house in an arid or freezing climate.
Water stain on ceiling mold.
Aureobasidium pullulans sclerophoma pithyophila cladosporium spp may cause black or black blue stains on wood.
The second cause of ceiling discoloration may be related to moisture but is not directly caused by it.
Common sources of water stains.
Before you can get water stains off of your drywall ceiling first you will need to eliminate the source of the moisture otherwise the stains will just keep coming back.
There are 3 most common types of ceiling stains and they are 1.
If bacteria has had time to set in it means the water spot has been on the ceiling for at least two or three days.
When water stains mar your ceiling the water comes from above.
Left untreated the mold stain may grow and become darker over time.
It s an indication that you may have a much bigger problem water accumulating in the ceiling tiles causing mold to grow.
It shouldn t be too hard to figure out from what area of the home the water is coming.
Unfortunately that stain is likely more than just an eyesore.
Warm temperatures and high humidity speed the growth rate of bacteria.
Acoustical ceiling tiles are made of porous materials so they readily absorb moisture and dirt.
When a portion of the ceiling stays damp for an extended period of time a yellowish brown mold stain can form overhead.
Ceiling stains can draw eyes away from even the most beautiful living room dining or kitchen.
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.
Whether it s the roof or an upstairs bathroom whatever is above the ceiling is usually the source of your moisture problem.
If your ceiling is moldy you may have a water leak in it or behind the walls.
The source of water stains in ceiling tiles.
Water stains are an indication of water problem and hence the possibility of mold growth.
To prevent mold regrowth coat your ceiling with a stain killing primer then paint over it with a mildew resistant.
Irregular stains may be an indication of mold growth.
The fruit bodies and possibly dark coloured hyphae of the molds may be present.
Removing a light water stain from drywall on the ceiling.