Is any body can help what it can be?I saw this in my roof corner this

That looks like mold, make a 50/50 mix of bleach and water and spray it down and let it sit for awhile before wiping it off. That will take care of the mold but it will come back if you have a leak that's causing the moisture that is then causing the mold.

Hello, it looks like mold and it looks like it is sagging a little where the mold is so I would say you have a leak.

Photo is very fuzzy....maybe you can take another in better light....from this one though it looks like you are having a moisture and mold problem...a very slow leak somewhere...I would call a drywall professional and have them look at it to nail down the problem before it can be fixed...

I am the vinegar girl. Investigate, you might have a leak.

It looks like black mold.

Is your roof leaking?

Looks like mold (not necessarily "black mold" even though it is black in color). To find out, try cleaning with soapy water. If it cleans up its dirt (unlikely). If not, then try Bleach/Water. If it changes color /lightens, it is mold and can be killed by washing the entire are with the bleach water. More important is to find the source of the dampness and correct it - as above - does the roof leak? Otherwise it will return again and again and grow into a larger area

I live in hurricane territory--I saw this after Katrina--it's mold. Like another person said, not a lot of water, but steady enough to keep the area damp. You're going to need to cut out the sheet rock if there's no other way to access the leak. Figure out where your pipes are, and where the leak might be. I had a leak in a pipe (tiny pinhole with tiny spray) that ran down a supporting beam and resulted in enough water by the time of detection that the L.R. hardwood floor was floating. If it's an outside wall, it could be a roof or soffitt leak-only when it rains. I think that's more likely, or else you'd nave more damage. Either way, You need help fast. Outside wall: roofer. Inside wall: plumber. Don't let this get worse. In my climate, termites are looking for this kind of thing.

If it's an inside wall, you can cut the sheet rock yourself with a sheetrock knife from big-box store or with power saw, and save some money. if you stop a roof leak soon, you might be able to treat the area with bleach, then re-paint with Kilz, without cutting out the sheet rock.

That is Black mold and needs to be inspected by a professional. Don't JUST cover it , as it's probably into the wood above what you see. I'm a property inspector and see this all the time. That is not safe and needs to be checked ASAP.

If this is on your ceiling and you have gutters, you need to clean those gutters out. If gutters get full they do not allow water to drain. Then the water seeps into your attic. You will need to inspect to see if you have damage to your wood. 1/2 and 1/2 Clorox and water should take the mold away. You should never be breathing in mold.

I agree with all of the previous answers, but I have another suggestion. Some older homes and manufactured homes have minimum (or no) insulation. If your climate is cooler, mold can grow on the ceilings/walls because condensation forms on the warmer side (especially with high humidity, such as bathrooms during showers). For example, single pane Windows tend to have mold at the bottom for the same reason. The cause could still be a leak, though, so follow through with professionals. Good luck!

It's mold. It can be cleaned with a mixture of 3:1 water and bleach with a rag. Definitely have your roof inspected for leaks and then repaired. Best of luck.

Yes it is mild you have a leak in your roof or attic.fix the ride or attic problem first then to get the mold off ceiling use Clorox and cold water where gloves protective eye wear etc. Then after I clean the mold off. Go to Wal-Mart buy a paint called killer or. Kills not sure how to spell but ask someone they will know what you are talking about hope this helps.

that is most definitely mold. Bleach will kill it, but it won’t kill the spores.....half vinager half water solution will kill spores. The spores can get airborne and spread the mold, if not killed

kilz is a type of paint that will seal the dark spots...and if rember right it has an agent in it to suppress molds.

its Mold. Bleach will kill it.

It is mold, as everyone says. However, it may be caused by a leak in the roof out as insulation in the attic problem. Yes, clean the mold, but find the cause.

Took a mighty good picture of some mold there.

Mold

When you clean it, I think you should just leave a ceiling fan on low all the time. This usually stops this. Sometimes when you live in areas that have high humidity, the best thing you can do is circulate the air.

Hi. Unfortunately bleach or a mixture of bleach and water WILL not remove the mould. It will recur. Believe me. Some forms of mould actually feed on bleach. All bleach does, is 'bleach' not kill. Try cleaning (white) vinegar. Try 2 parts clean vin to 2 parts water, and spray on affected area. When dry wipe off. Or you could use a paint brush to paint on. Or even a stronger mixture of 4 parts vinegar to1 part water. Dry, and wipe. Investigate whether you have a roof tile that might be lose, or if the 'grout' or mortar between the roof tiles is intact (don't know what it is called),or a piece of guttering that might be lose. If all attempts fail, most certainly get in touch with professional mould removers, as mould can spread very quickly. Has the weather in your area been wet, or rainy, or humid? Is the area ventilated? good luck.

toxic black mold. Have leek repaired then new sheet rock! This can make you sick .Extended exposure can be deadly and very bad for lung Helth . Small children are at risk while breathing air in this home. Take it out even if you do no repair this at once

Punch a small hole in it to see if there’s water above the ceiling. If nothing comes out after a few days just do as everyone suggests above. If it keeps leaking you‘ll have to open it up and find the problem. I would cut the drywall out anyway.

I had the same problem turns out it was condensation thankfull. Cleaned it 50/50 vinegar water and repainted. Hope yours is the same.

i had this. when someone takes a bath/shower. when you open the bath door the steam rolls out! use humidity fan in bath

Somebody said to use 50/50 bleach and water that will take care of it temporarily. And, even if you do have a leak in the roof after fixing it the mold will still come back. So, after wiping down, letting dry and fixing roof. Add a little bleach to your primer or whatever your paint choice is and touch up that spot. That will keep it from coming back.