Questions tagged [mold]

Preventing, identifying, or treating mold infestations in the home.

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24 views

Had a slow leak into bathroom ceiling/wall but humidity was low and controlled in that area for 2 weeks. What is mold Risk?

Installed a new furnace humidifier to replace a non-working(probably never used) vintage humidifier 14 days ago in a new place I bought. Confirmed a small gap let a slow drip from condensation that ...
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3answers
95 views

How do I get rid of mold on roughcast?

I've got mold on my living room's wall under my window : This part of the wall used to be behind some furniture, so I believe the mold was caused by lack of ventilation (we are on the 2nd floor and ...
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4answers
445 views

Is this mold on my room's ceiling? Is it dangerous?

We have a room that has been unused for a while. We noticed some faint spots appearing on the ceiling a couple years ago. The spots have slightly darkened over time but haven't changed in size or ...
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256 views

Black mold or termites?

I’m not sure bout the bug or the mold looking stuff the board is dry and so was the wall behind it but it’s def dark enough there. Any thoughts would be great
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1answer
38 views

How to remove/prevent mold from forming in bathroom

I just bought a rental property and one of the tenants bathrooms seems to have a mold issue. In the shower, around the toilet, and around the perimeter of the room there seems to be mold/dirt build up....
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2answers
470 views

Gray “Dust” On Pink Insulation in Attic

I was looking in my attic today for the first time; it's been on my list to check up there to make sure nothing looks off (i.e. no water damage, the roof isn't falling apart, etc). One thing I ...
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1answer
67 views

Black mould in silicon around tiles - spraying vinegar or tea tree oil enough or need to scrub?

I have what I believe to be "black mould" in the silicon section behind my kitchen sink; from what I have read lots of moulds / mildews can be black, but the more dangerous one (Stachybotrys chartarum)...
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2answers
52 views

Mold on the walls on the bathroom

I've been living on the same rented house for some years and on the last year's the mold on the house is intensifying. For example the bathroom is the worst case by far This is an old house and the ...
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2answers
342 views

Mold in inaccessible crawlspace

I bought a 1927 house last year and, afterwards learned I'm especially sensitive to mold and this house has plenty of it. I've eliminated mold everywhere I've found it except in the inaccessible ...
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3answers
3k views

How to cut round hole in aluminum soffit after installation

Related question After having our roof re-configured and larger overhangs added, I noticed that the contractor placed the bathroom exhaust vent that used to go out the side wall just under the eaves ...
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3answers
235 views

How do I get rid of water streaks on my bathroom wall?

So the walls in my bathroom have streaks all over them. They've been building up over time and is getting worse. The wall over the shower in particular looks pretty bad. Does anyone know how I can get ...
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1answer
163 views

Is heat a practical way to kill structual mold?

So heating the whole house or affected rooms up to 45 50 degrees C for long enough to also heat and kill any mold in exterior walls as well as mold on the surface?
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1answer
760 views

How do I clean mold off my bathroom ceiling?

So I live in an apartment and there are black spots all over my bathroom ceiling. I assume it's mold. I've kind of avoided dealing with it because it's on the ceiling which makes it harder to clean. ...
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34 views

Installing HVAC return in mold-infested room

We're in the process of reducting our house for a central HVAC system. We have an insulated "cold room" in the basement that had an outbreak of green mold in the past, probably from an old fridge but ...
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1answer
152 views

Is this mold or is it something else?

I recently moved from Southern California to the Pacific Northwest, just outside of Seattle. I rented a house and have been living in it for ~3 months. Just earlier today, in the seldom-entered guest ...
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1answer
108 views

Can I remove this mold by myself?

I am living in a single room-appartment that has one window, a kitchen unit with no steam outlet/exhaust hood, and a bathroom with no windows but an (albeit small) ventilated outlet above the shower. ...
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1answer
66 views

Mold at Air Return

I have 2 HVAC units, one for upstairs and one for downstairs. When I went to change my air filter for the downstairs unit I noticed some mold in the return duct. This is a large duct that travels ...
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1answer
84 views

Mould removal - how bad does it need to be before cleaning isn't enough?

The kitchen faucet in my apartment has been leaking above the counter for years, but every time I complained to management about it nothing happened and it wasn't enough of an annoyance to make me ...
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1answer
71 views

are those mold? and are these dangerous?

Me and my wife are having headaches and fatigue lately, and we are not sure what's causing it. We did some research and found https://www.whatsupfagans.com/black-mold-in-showers/ and realize it could ...
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3answers
2k views

What are the black spots on my basement ceiling?

My house is one year new construction. I didn't use the dehumidifier at the basement until one month ago I realized the basement was damp and there were some mold on the wood frame on the basement ...
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1answer
35 views

mold into dishwasher

I come home from a week away to find that I left a few dishes in the sink, oops, and one of them has signs of life. Would it be unwise to put the moldy mug in the dishwasher? Should I first soak it ...
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1answer
287 views

Spider-like / roots? mold?

We recently discovered our dishwasher was leaking under our flooring into the subfloor (formerly the floor - oak before the previous owner added pergo). We’re in the process of cleaning it up and see ...
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1answer
74 views

Unknown growth on window

I found this growth on several of my back windows. I'm not sure if it is mold or moss or something else entirely. Hoping someone could help me identify it and how to safely remove it. Thanks.
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1answer
92 views

Mold concern after pipe leaked in ceiling

I bought a foreclosure that had been vacant and winterized for more than a year. About ten hours after I turned the water back on, water started dripping from the ceiling in the kitchen. When I ...
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1answer
345 views

Bathroom flooded by condo upstairs. Can there be mold on the drywall between the floors?

Upstairs condo neighbor had an ongoing leak for about two weeks in their bathroom. Not sure what was leaking, but they replaced toilet ring and shower faucets and since then the leak has stopped. This ...
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1answer
68 views

How to avoid mouldy properties?

I've been wondering if there is any way to recognise materials/home designs which may mean the growth of mould in a house? For normal properties, simply opening the window during a shower prevents ...
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1answer
30 views

How to address minor mold problem in paint prep

A little bit of localized roof leaking occurred over the winter above the bathroom. We have addressed the roof problem, so no leaking is occurring any more, but now I'm getting ready to paint the ...
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4answers
857 views

How can I prevent a humidifier from getting moldy?

I have a small cool mist humidifier. It has a water tank and ejects a mist and does not have a filter or anything. It is "TaoTronics" brand in case anyone wants to find it. I've noticed pink streaks ...
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0answers
77 views

Mold or something else?

What is this, is the mold anyone know? Photos: 1 2 3 4 5 6
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0answers
47 views

How can I prevent mold from growing on my bathroom walls?

The humidity in my bathroom is causing mold to grow on the walls. In addition there was a leak in the roof, that stained the ceiling, and now the ceiling is discolored as well even though the leak ...
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2answers
559 views

Is this mold on my bathroom ceiling?

I've recently purchased a house and am worried there might be mold on the bathroom ceiling. Can anyone identify if that's what these dark blotches are? If it is mold, what's the best way to get rid of ...
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1answer
74 views

What can be done with walls that are wet and moldy?

After several stormy and rainy days; wetness and mold began to appear on the walls. The mold quickly spread to all of the rooms in the apartment. It did not happen in the summer so it is probably ...
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1answer
76 views

Is this mold or not?

Mold or dirt? Leak for 6 months saturating this area.
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0answers
127 views

Damp/Wet Corners with Mold in House

In the outer corners along the external walls of our house, and inside closets on external walls we are experiencing water and moisture gathering on the flooring and there is mold appearing on the ...
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1answer
247 views

Moved into an older home and found plastic sheeting was applied to cinder blocks in basement

How do we know if we should be redoing all the drywall (on exterior walls) in the basement or leave as-is? We just moved into an older house (1970s) that was mostly sitting empty for about 6-12 ...
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6answers
6k views

Does A/C encourage mold growth

I think i'm being sold bunk by a mold company, but not sure. We live in the tropics, we recently had our bathroom ceiling flood due to a burst pipe, and went away immediately after. (the landlord had ...
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0answers
248 views

Basement room + concrete foundation + drywall + moisture question

Basement + concrete foundation + drywall / moisture question: just got drywall glued to a small portion of concrete foundation in an unfinished basement room: Should I have contractor remove these ...
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2answers
46 views

Risk of insulation triggering mold growth?

The unfinished basement gets water which is pumped out with a sump pump. (Water from heavy rains percolates into the basement.) Company A gave me an estimate to insulate the attic. So did Company B, ...
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2answers
2k views

What size uncaulked gap should be left at the bottom of a shower tile job, to allow draining?

The contractor's intent was to leave a gap at the bottom of this tile job, to allow drainage, and as an alternative to a caulk job requiring periodic maintenance: However it did not work, the gap is ...
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2answers
226 views

How can I remove mold from the underside of garage roof sheathing?

Home inspector found mold in roof under sheathing in my garage. Mold professional says they spray a fungicide to kill it and then spray with a tinted paint. Extremely pricey! You cant clean it off ...
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1answer
165 views

How do I assess what to replace during repairs after a severe roof leak? [closed]

Evening! Long story short. Bad roof leak. Leaked from the roof to the exterior wall. I do not know the extent of the damage (yet) but obviously I am not too worried since I plan on, once the roof is ...
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3answers
97 views

“nuclear option” for mold growth on ceramics and other tiles?

I have to clean a long-neglected area that has mold growing on tiled walls and floor. Soap and a good brush is called for, but I'd like to "fortify my assault" with household chemicals. Is there any ...
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1answer
737 views

Help with moldy deck from bad boiled linseed oil job

I need some opinions on what to do about my deck. About about a month and a half ago we applied linseed oil to our deck. Our first mistake was that the deck had a sealant, so the oil didn't really ...
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1answer
155 views

Is this mold in my apartment?

I recently found a slow water leak in the back of my closet which houses both the AC unit and the hot water heater. Maintenance came and pulled up the carpet and sprayed water/bleach on the affected ...
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1answer
233 views

mitigate mold concerns from humidity in sauna in PNW

I'm building a sauna into a house in the Pacific Northwest. One wall is external, three walls are internal, and there is an attic overtop where I can vent to the outside. All walls and ceiling of ...
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1answer
597 views

Crawlspace Insulation Upside Down Replacement

I have an upcoming project and would appreciate any input. My crawlspace in Maryland had insulation installed upside down (face paper towards ground) and is now rotted/mildewed/falling from the ...
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2answers
83 views

draining sauna into crawlspace

I'm thinking of setting up a drain from my sauna through the floor of my house into my crawlspace. Practically speaking, would this damage the house?
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1answer
79 views

We found this is it mold?

We had a water leak about two months ago and since then I have been sick. We have a mold specialist coming out but they couldn’t come for two weeks. We peeled the carpet back to find this...
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1answer
344 views

Getting rid of mold in areas you cannot reach

I used a home mold test kit (leftover from my previous question) to see if I had mold in my basement (where I sleep). Turns out a little bit of mold is growing in the petri dish. The mold looks to be ...
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1answer
313 views

Which comes 1st, the mold remediation or the re-application of drylock on old stone walls?

Basement: old stone walls, drylock painted 15 yrs ago. Now some stained, moisture damage, air mold test indicates pro.mold remediation needed. Moisture issue has been fixed, now the walls need to ...

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