Questions tagged [mold]

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

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36 views

Does primer normally separate in to different colors, or is this mold growing in it?

I have two five gallon buckets of Sherwin Williams PVA Drywall Primer & Sealer which is about a year and a half old. One is a partial bucket and the other is sealed and has never been opened. I ...
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40 views

How worried should I be about mold/mildew in my water softener tank?

My wife and I moved into a home that had been rented for a while. Looks like lots of maintenance has been deferred to us, including the water softening system. We noticed some mold in the tank during ...
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21 views

Sealing/resurfacing exterior concrete retaining wall

I have a 3 ft concrete retaining wall that runs across our backyard. It collects a lot of black mildew with white spots. Is there a sealant or other surfacing material that I can use to help keep ...
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4answers
65 views

Store Refrigerator, Keeps Doors Open How Often

I plan to store refrigerator in my residence unplugged. I cleaned it well with all soap, 409 and disinfectant, and left doors open to dry out for few days. They recommend to keep Doors Open for long ...
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3answers
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Why do unused Refrigerator Appliances Grow Mold, while unused Cabinets and electronics don't?

I have a refrigerator that I thoroughly cleaned out and washed with soap/baking soda, and let thoroughly dry. They always recommend to keep Doors Open for long term refrigerator storage. This prevents ...
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4answers
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What should I do about mold in a new build?

I bought my first place in December, five months ago. It's a new 3 bedroom, 2 bathroom condominium in San Francisco CA, and they finished construction in October 2019. Over the last few days, other ...
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1answer
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How do I remove black mold from area of laundry machine where water won’t reach?

I noticed some black mold in my laundry machine. Unfortunately, this area seems to be in between the glass part and the plastic and I can’t fit even a fingernail in to remove it (even water can’t ...
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1answer
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Do I need to remove mould from plywood before treating?

I have a shed base on piers topped with plywood that was finished last Winter and covered up to help protect from the elements. However some water made it through (or general dampness of being ...
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2answers
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Do I need to remove this enclosed shower and check for mold?

My wife and I just bought a house, and I noticed after using the shower, there were black specs all over the shower floor. There is a seam where the bottom part of the shower joins with the wall ...
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2answers
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What is this grey fungus/insect, and is it damaging the woodwork?

Yesterday my parents discovered these 'things' attached to the varnished wooden fascia board outside the downstairs bathroom. They are attached to the outside of the house, in a sheltered spot. They ...
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1answer
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it is a good idea to turn on heating at the end of every air conditioning cycle at home for keeping filters clean against molds?

The question is: it is a good idea to turn on heating at the end of every air conditioning cycle at home for keeping filters clean against mold? Or is there any other way keeping filters clean due to ...
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2answers
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There is mold in my bucket of paint. Can I still use the paint?

This is a very expensive acrylic paint, the bucket was not properly closed, and left 1 year in the basement. Now there is mold inside the bucket ; The strong smell of acrylic has also disappeared. ...
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1answer
44 views

Can Wet and Forget be used in a basement?

Can Wet and Forget (or similar product) be used in an unfinished basement? This style of spray connects to a garden hose and mixes as it is sprayed on affected areas. I am wondering if the additional ...
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1answer
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What can I use to form concrete countertops longer than 8 feet?

Building a concrete counter top 4x10 and cannot fine a sheet of melamine 10 feet long anywhere. Anyone know where I could get a piece? I’d rather not joint to eliminate a seam
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3answers
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Will fiberglass insulation grow mold? (Florida)

Followup to this question one of the comments says that fiberglass can trap moisture and lead to mold/mildew. I did some research myself and found other sources saying the same. This worries me -- ...
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replacing pressure treated 1x4 boards on roof with non-pressure treated white pine - OK?

On an 85 year old house there are pressure treated 1x4s running horizontally across the rafters, and the plywood sheathing is laid on top of those 1x4s. I have to replace some of these 1x4s but there ...
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1answer
47 views

How do I clean mold from a leaky ICF foundation?

I have an ICF foundation on my home that water is penetrating. I don't have a sump, and I don't know what kind of drainage is installed. My main concern is my west wall, since it is in the finished ...
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2answers
53 views

Are dark stains that show up when wet embedded mold?

Recently I fixed a leak which was causing moisture related issues (obviously). Upon doing some clean up of the area before reinstalling drywall, i noticed some dark spots, likely mold, on the wood. I ...
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Solution to put down a window sill crack to prevent mold

I have a couple windows where there is a space below the window that goes into the wall (see bottom of picture). There was mold and condensation all around the area, so I'm guessing there's mold down ...
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2answers
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Mold on cedar soffit - how to fix?

I stained this 2 years ago before installation - back and front. The boards were kiln dried and stained inside. The penetrating stain I used contains linseed oil and after I installed I read some ...
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1answer
43 views

Should we glue above and below our rubber underlayment for wooden floors?

We have received our delivery of 3/4 inch thick engineered wood planks. They are 8 inches wide, random lengths, and the white oak layer on top is about 3/16 thick. Subfloor is very good and solid ...
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2answers
56 views

Is it safe to throw moldy items away

I have a lot of things which were covered in fungus. I have to go to some recycling area to throw them out. I want to know if is it safe as I heard fungus can get in your breathe. What is the best ...
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1answer
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Respirator or mask for brick (crystalline silica) and mold?

I'm looking for a simple safety solution for multiple small projects that keep coming up. But it's not clear what safety mask and filters to buy. For example, I read an article that states that I ...
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2answers
42 views

Process of removing mold from behind shower tile

Background Thanks to a shifting foundation, the tile in one of our showers cracked along a corner and water got in behind it. We know that at the least the wall behind the tile has fails as it caved ...
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1answer
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Washer and toilet water backing up into shower. Can't change plumbing. What can I do?

Renting a tear down, landlord does next to nothing, house will be torn down. Water drainage from house is not working, also not going to be redone. So the problem is drainage for 3 showers 4 toilets ...
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2answers
87 views

Is this mold situation ok to ignore?

We just bought a home in the North-East and were told by the home inspector that we had some mold growth in the attic, but that he didn't think it was the "toxic" black kind so it wasn't urgent, but ...
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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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2answers
39 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
133 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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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
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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
187 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
47 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
48 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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1answer
140 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
622 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
98 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
88 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
141 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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0answers
31 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
97 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
99 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
41 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
79 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
63 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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2answers
627 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
31 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
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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
58 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
63 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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