Sounds like it. When drywall compound that has been open in a humid environment gets left sitting for a long time it can get moldy even if the lid was put back on properly.
Don't use it.
I agree it is likely mold. Most mold is not poisonous and if it is not then all you need to do is remove the molded wall material and try to find the sourch of moisture in the wall that allowed the mold to grow - for more info Mold Remediation. Good luck.
The only thing I know of that would cause black spots on the wall is mold. Instead of thinking it's some sign of the Supernatural try pulling out a piece to see if there is black mold behind it. If there is then you'll have to move because it's hazardous to your health.ANSWER I agree it is likely mold. Most mold is not poisonous and if it is not then all you need to do is remove the molded wall material and try to find the sourch of moisture in the wall that allowed the mold to grow - for more info Google Mold Remediation. Good luck.
Bleach
www.toxic-black-mold-info.com, http://www.essortment.com/all/whatisblackmo_rfls.htm, and blackmoldremovalguide.com will all help you differentiate between black mold and other molds. Black mold is usually in spots or blotches on walls underneath wallpaper or on dry wall. It is black in color and looks like decay or severe black staining.
There is black mold growing in my house. I need to get rid of it, but I do not know what to do. I want to be safe, careful and thorough in removing it. What should I do about black mold removal?
The average price for black mold removal is around $3,000 per infected wall. The degree of the infection also plays a role in the price, but like previously stated your average cost is $3,000 per infected wall.
We can not tell we can not see the mold.
no, black discharge can be a sign of a prolapse in the vaginal wall - get this checked out
your house probably isn't safe structually and medically. You could get very ill from being around so much mold. if you want to save your home start by replacing the walls one by one. That's studs and dry wall.
You can definitely try spraying some diluted household cleanser on it (no bleach), and rubbing the mold off with a sponge or cloth. The first priority is your safety. You should wear a dust mask while cleaning mold so that you don't breathe in the spores. And you should ventilate the area well until it is completely dry afterwards. Since mold grows readily with moisture, you should also try to increase ventilation to the bathroom in the future, to prevent future mold growth. But keep in mind that there might be more mold than you can see. Mold can grow also on the backside of drywall and wallpaper. So if you suspect that you may have a more extensive mold problem, consider calling a mold remediation expert.
Having limited information...the black marks may be the result of warm water vapor condensating on the cooler wall surface and allowing for a mold to grow. If this is the case, you can clean the area with a dilute solution of bleach and water.
Toxic black mold may start out looking like small black spots on the wall, floor, ceiling or area that it is growing. They tend to cluster together in spots and can look like a splatter of dirt. Early on they can look like insect waste but they will grow and don't simply wipe away.
No because you can wall sign but what if a storm comes and rips the sign off the you are out of some money and you have no wall sign. So I don't think you should go with the wall sign.