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

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Mold, Lead, Asbestos Testing Kits - recommended or seek a professional?

Professional testing of Mold or Lead or Asbestos can range from $300 - $1000 for each type. I just found some home testing kits that require you to take and submit samples. Are these a good cost ...
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2answers
12k views

What should I do after mistakenly using moldy paint on drywall?

I was painting my basement and used a six year old five gallon bucket of paint. It had about 4 gallons of paint in it. The surface was black, but it didn't smell bad. I thought it was the dye ...
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1answer
4k views

Mold on drywall. Should I clean-up or replace?

Apartment next door got flooded and some water sipped underneath the wall. The floor buckled and had to be replaced. After removing floor trim I discovered some mold under the baseboard. I cut out a ...
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2answers
18 views

identifying drainage problems without pulling up the floor

Help. We bought a house 2 yrs ago and remodeled it to within an inch of its life. Both my husband and I have mold allergies. The house is on a slab so we pulled all carpet and put in moisture barrier ...
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2answers
62 views

Best way, if needed, to dehumidify storage room?

We are building a new garage with apt above and storage room at the back in Houston TX. It's replacing a small garage with back storage room which was very poorly constructed and had major moisture ...
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6answers
8k views

Inside of Washing Machine smells horrible. How to fix?

I bought a used Washing Machine (Miele W828) that looked to be in perfect condition. It actually works perfectly. However, the inside of the Machine smells horrible, like mildew. This smell gets ...
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12 views

how do i clean mold smell from under my sink that is on partical board?

garbage disposal leaked. cleaned it up. Washed partical board with water&bleach mix. let fan run on it over night. I still have a smell when I open the cabinet I was told it was mold. I ...
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77 views

Paint and mold prevention

Which application produces the best results, with respect to mold prevention: An all-in-one paint with primer Apply plain primer, then regular paint Is using either process better for mold and ...
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27 views

Can I fix mold infestation of around 10 square feet, or do I need pro?

I have mold under my carpet and part of drywall. Do I need a mold removal pro, or can I do it myself? The water seems to come from a leak in siding.
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3answers
65 views

How to deal with this mold on the window frame?

I just discovered what I assume is mold on my window frame in the kitchen/living room (quite high humidty, but the window has been open a lot and our fan is going 24/7). Now, I've been told that ...
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2answers
36 views

Water damage restoration - disinfecting carpet?

Is it possible to actually disinfect carpet after a small amount of (technically) dirty water exposure, either by applying something to the carpet or using an upright carpet cleaner and mixing ...
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0answers
44 views

Do I need to replace or treat moisture-damaged studs in a shower area before replacing cement board?

I bought my house in 2011 after it was built in 2009. It originally had a cheap molded plastic shower surround, but I removed it in order to install tile. I then discovered that the cement board had ...
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5answers
39k views

What are the issues with using sour smelling paint?

My husband touched up the paint in our bedroom. The smell was rancid, like sour milk. I cannot believe he used the paint that went bad. I have a horrible headache and watery eyes, an obvious ...
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28 views

Can mold growth be removed and cleaned up in a two-story apartment building successfully?

I live in an apartment building that has 24 units which all the bathrooms vent into the hollow walls or their neighbors bathrooms upstairs. (so in their ceiling, the smell and moisture comes out ...
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2answers
160 views

What is this stuff in the attic?

What is the black stuff in the first four photos, and the white stuff in the last photo? Is any of it mold, or is it all harmless stuff? Structure is about 10 years old. Home inspector claimed that ...
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2answers
6k views

Is this termite damage and if so how do I repair it?

I was moving a bolt storage rack in the basement, and when I took it off the wall, I noticed that the wall behind it was moldy. Then I noticed a ripple in the paint going all the way up, and when I ...
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2answers
871 views

What are these droppings/dirt clods/mold clumps?

I removed a section of baseboard and found some unusual little blackish-brownish clumps on the back of it and the drywall that it was fastened to: Anyone have any idea what these might be? For ...
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5answers
211 views

How do I solve this mould problem?

Before I get down to details I just wannna say that we are in UK and unable to go anywhere else as of financial issues. We've been living and renting a bottom floor flat for 4 years and it's been ...
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3answers
170 views

Do I need to replace water damage or just let it dry out?

I had a water leak under my kitchen sink. It happened pretty slowly over the course of perhaps 8 weeks. The bottom of the cupboard was saturated and about 6 " up the sides of the same cupboard unit. ...
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6k views

Is there a way to design/create a shower that is less prone to mold?

I think I've had it with traditional tiled showers...I can't stand the site of mold in between tiles, on the tiles! on shower curtains, on shower doors, etc. I think I'm pretty clean, but I always ...
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3answers
1k views

Are there any side effects of using sodium hydroxide as a mold-cleaner in the shower?

I've tried using sodium hydroxide (NaOH) to clean mold (mould) in the shower before on a patch test area, and it worked really well. This simply involves using drain cleaner (with gloves, open window ...
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8answers
61k views

What are the black spots on my bathroom ceiling? Are they mold?

My bathroom above my tub is getting some black spots on it that seems to be growing. I assume it's mold. I am wondering how should I deal with this? What should I expect it to cost?
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2answers
47 views

Does the thickness of insulation on the cooling pipe of an air contioner make a difference to preventing mould and condensation

We have an apartment in Port Hedland WA.( Extreme humidity and heat) It's relatively new( 3 years old) but there was mold all over the ceiling and along the walls following the air con pipes to ...
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241 views

Is using a thermal camera an effective method to locate mold & moisture behind finished walls in a basement?

My basement is finished and there are signs that I have leaks or some mold. The smell is not very strong but I can feel it for the first few seconds when I enter the basement, after that it instantly ...
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1answer
73 views

cleaning mold with bleach - residue from previous cleaning

A bathroom wall is covered in mold. I have a foam spray cleaner that contains bleach to remove mold. I have previously cleaned the wall multiple times with various wipes and a vinegar mixture. I want ...
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3answers
115 views

How much drywall should I remove around a moldy area?

The previous owner told me that during the last winter when snow melted, water got in the basement through the drywall and he had to wipe dry the floor. Last year we had one of the worst winters on ...
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92 views

Mold Growing on Top of Exterior Door

I am not that knowledgeable with mold. On my exterior front door by the head and the door stop I have mold growing. I checked the drywall and it doesn't seem to have any water damage. I was thinking ...
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123 views

Basement waterproofing with thermal break

I need help figuring out best solution to fix my basement moisture/mold issue... As far as I can tell, water is entering at bottom seam of poured concrete wall and basement floor. I considered ...
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2answers
49 views

Open windows to help condensation problems in winter - good or bad advice?

I live in a Victorian gable end terrace which is classed as 'hard to heat' and sufferers from mould/ condensation . I have taken all the insulation measures I can afford & treated all obvious ...
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1answer
600 views

How to remove mold from Styrofoam ceiling tiles?

I've recently noticed, that there are some sort of (stains) on a ceiling in a bathroom. The ceiling is covered with Styrofoam tiles of square shape. I took a closer look and it seems to me that it ...
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2answers
122 views

What are the considerations for crawlspace encapsulation barriers / humidity control?

I live in a house that's half slab, half crawlspace. The crawl is half basement. Typical crawlspace/basement humidity readings are: 80% RH @ 67°F 85% RH @ 68°F 78% RH @ 67°F Where in the ...
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3answers
314 views

How should I treat mold under the caulk around my kitchen sink?

I've got a tiled kitchen countertop and have noticed some mold under the caulking around the sink, especially where the tile dips. Should I clean out the old caulk and re-caulk the area, or pop the ...
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1answer
44 views

Do I have a mold problem?

Hi DIY Stack Exchange! I had a fun wintertime question about moisture and mold. My bedroom has been getting dry lately and with that comes dry hands, and small furniture cracks. Fun! So I went to go ...
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73 views

What is more effective - mold control spray or the fogger?

Concrobium sells mold control spray and the fogger. Which one has more lasting effect on the mold? Does the $135 cost of fogger justify the effect it has on the mold?
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3answers
11k views

What is the recommended way to destroy mold?

Back in the day I've heard that bleach is a good way to kill mold. The other day a home inspector suggested that Dawn dish soap actually works much better than bleach. I've heard from another home ...
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2answers
65 views

How to fix a vanity mold built up as a result of valve leak?

I noticed a valve leak too late and now part of the vanity has built up some mold. I would like to avoid replacing the entire thing obviously. So I would like to understand how (un)safe it is to keep ...
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304 views

How to prevent mold in stored joint compound

Joint compound comes in larger containers than I need. I have had this problem for years where storing opened but unused joint compound leads to mold growth, usually starting within a week or two. I'd ...
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1answer
137 views

How to avoid mold in shower caulk?

For the third time, I plan to remove this strip of caulk in my bathtub/shower a bit beyond the discoloration (mold?) and recaulk it. I would like to get it right this time. I plan to remove the ...
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1answer
108 views

Is white vinegar as effective against black mold as rice or apple vinegar?

Does anyone know if you can use white vinegar to irradiate black mold from inside window panes? I see they mention rice vinegar or apple cider vinegar; is there a difference on how those react with ...
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4answers
144 views

What is this black coloring in attic?

Curious if anyone can tell what this is? Not sure if it's mold or if it is something else. The yellow in the closeup is sap I believe but the black stuff almost looks like super small poppy seeds.
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1answer
108 views

How can I prevent clothes and food stuff from going bad in a moist cabinet

My neighbors are constructing their house from ground up. We have concrete structures for almost all buildings here. When the walls are ready they need to water it so the concrete settles and get ...
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65 views

Does filling in cement(inside or outside the house) act as a deterrent to the soil-water and mold problems resulting from it?

An experienced contractor suggested to me that filling cement near the bottom one foot of basement walls will stop the water from coming inside the basement. And also, a 2 feet of cement floor around ...
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2answers
210 views

Help diagnosing source of basement moisture

Hoping your experience can help figure out where moisture is coming from in my basement. I tried to include a lot of details to help identify issue. I have a house built in 2008 with finished ...
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2answers
88 views

How do I dehumidify a season cabin in the winter

My Aunt has a seasonal cabin in NH. At the end of the fall we shut the water off and close down the cabin. Last year we had to gut and re-do the entire cabin due to a mold problem. Part of the problem ...
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94 views

If black mold is discovered underneath the siding, does that necessarily imply interior air quality problems?

Consider this video. Without a vapor barrier, this home will accumulate black mold on the plywood on the exterior of the home. My Question: Does black mold on the exterior of a home necessarily ...
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3answers
3k views

Is there a way to remove the mildew smell from under tile without damaging the tile?

We live in a rental. The toilet was leaking when we arrived. Landlord paid for a plumber to do a simple repair, but before that, there was definitely water pooling underneath the tile (and seeping ...
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1answer
421 views

Should I remove vinyl flooring to allow the floor underneath to dry out?

We are renovating a 200+ year old house that had a dirt basement. We poured a concrete floor and put vinyl flooring (snap-together, looks sort of like wood) over this. The basement has gotten wet (...
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47 views

Had a leak behind a new tub do I need to do anything else to prevent mold or other issues?

About four weeks ago I had an old tub/shower enclosure removed and a new acrylic tub and three wall enclosure put in, including a new valve and moving the shower head up, this was all installed by a ...
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2answers
950 views

What license/certifications are appropriate for mold remediation firms?

I am looking for someone to clean up mold in my attic, and I have been advised to find someone who is licensed in the area of mold. I’ve checked HomeAdvisor and BBB, but it’s not clear to me who ...
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2answers
76 views

Is this cement board / Sheetrock still ok to use in my bathroom?

Our builders are putting up cement board in the bathroom, and we noticed the pieces on the left have some stains, they look very different to the rest that looks the same as the ones on the right of ...