If your ceiling is moldy you may have a water leak in it or behind the walls.
Water stain on ceiling mold.
Warm temperatures and high humidity speed the growth rate of bacteria.
The fruit bodies and possibly dark coloured hyphae of the molds may be present.
Ceiling stains can draw eyes away from even the most beautiful living room dining or kitchen.
A house in a humid tropical area for instance will develop mold more readily than a house in an arid or freezing climate.
If you can t identify a possible water source above the ceiling stain you may have a leaky pipe.
Once the problem is solved put on safety glasses and gloves and blot the stain with a mixture of one part water and one part bleach.
There are 3 most common types of ceiling stains and they are 1.
It s an indication that you may have a much bigger problem water accumulating in the ceiling tiles causing mold to grow.
When water stains mar your ceiling the water comes from above.
It shouldn t be too hard to figure out from what area of the home the water is coming.
Removing a light water stain from drywall on the ceiling.
Common sources of water stains.
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.
Acoustical ceiling tiles are made of porous materials so they readily absorb moisture and dirt.
Water stains are an indication of water problem and hence the possibility of mold growth.
Whether from the roof or a slow leak from a water pipe the drip itself is.
The source of water stains in ceiling tiles.
When a portion of the ceiling stays damp for an extended period of time a yellowish brown mold stain can form overhead.
Irregular stains may be an indication of mold growth.
Unfortunately that stain is likely more than just an eyesore.
The second cause of ceiling discoloration may be related to moisture but is not directly caused by it.
Left untreated the mold stain may grow and become darker over time.
Aureobasidium pullulans sclerophoma pithyophila cladosporium spp may cause black or black blue stains on wood.
Whether it s the roof or an upstairs bathroom whatever is above the ceiling is usually the source of your moisture problem.