Questions tagged [mold]

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

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1answer
272 views

What is this 1" growth cluster that formed over night

This grew overnight on ceiling. There are some brown stains on the ceiling near it. but only there. No where else in home. Have not touched them byt they look spongy. Live in central Florida in ...
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1answer
154 views

Is this mold in the walls or something else?

We are remediating visible mold in certain areas of the house. This weekend I took photos in side the walls and into the attic. Does these photos look like mold or something else? Some of the dark ...
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1answer
96 views

is this bathroom mold a health hazard?

Its all over the ceiling. Its really black spots everywhere and its because the awning windows (hinged at bottom) dont provide enough ventialition. The paint is cracking and pealing, i think its ...
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2answers
2k views

What could the discolored areas on the underside of my roof be?

I had an inspection done on my house last year before I bought it, and was told by the inspector that the dark discolored areas of the plywood on the bottom side of my roof was likely "dark staining ...
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1answer
999 views

How do I remove mold seeping from under the toilet?

I'm not sure if this is the right forum to ask this question. If not could you point me in the right direction? How do we get rid of orange mold under the toilet? We've tried scraping it off with ...
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1answer
97 views

Leak in basement - should I be concerned?

I recently moved into a brand new apartment building. I have a ground floor duplex (downstairs is below ground) and shortly after moving in I noticed there was something leaking into the wall ...
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1answer
165 views

bathroom exhaust venting to a roof vent

I am disconnecting a bathroom exhaust fan that is vented to a roof vent in my attic. This caused condensation/moisture in my attic, which became apparent on these cold winter days. Some of the ...
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1answer
434 views

What's the maximum recommended temperature for your house while away?

I live in Florida, so I'm not really concerned at all about the coolness of the home in the winter. However, I'd obviously like to save as much energy as possible while gone for the day during the ...
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2answers
110 views

Is this mold in my bathroom?

Moved into a new house and the bathroom has a foul odour and i suspect it has something to do with he black stuff all over the place. Could it be mold?
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1answer
85 views

Kitchen Cupboard Mould issues

I have a mould issue that I am trying to tackle. I live in a pre 1900's victorian terrace on the ground floor. Our kitchen has one problematic cupboard which is in the rear corner of the property. A ...
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2answers
99 views

is this mold or something else?

Is this (the red and the round brown rusted looking thing) mold? Thanks
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0answers
73 views

Mold on my One Month Old?

Moved in my newly built Wisconsin house in the first week of November. It's a raised ranch with unfinished full walkout basement. Insulation is fiberglass batting with 4mil poly over external wood ...
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1answer
3k views

How can I temporarily remedy the rotten, leaky roof on a mobile home?

Ok I have a double wide mobile home with a really bad roof. The shingles are shot, the osb underneath is rotting from the exposure of water, and the insulation is starting to mold. I posted about one ...
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4answers
25k views

What is this black stuff that appeared on my drain after cleaning with a bleach-based cleaner and how do I clean it?

Recently, I had problems with a pinkish/orange-colored bacteria (Serratia marcescens) in my bathroom. The bacteria would show up in my shower and sink, specifically near or around the drains. To ...
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2answers
449 views

Prevent dry rot from spreading

Last winter, I had serious dry and wet rot issues in the basement. The reason seemed to be that the wall was not watertight. This has been corrected and repair works were carried out by professionals (...
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0answers
2k views

Why is my concrete soft and crumbly after more than 14 hours?

So I'm trying to create a concrete pencil holder but the last few times I've tried, the cement has not dried and comes out really crumbly and is soft and damp and dusty, even after curing all night. I'...
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1answer
118 views

Unsealed flooring next to shower and strong smell of mold

Background: Started detecting a fairly strong odor in the bathroom a few weeks back. Couldn't place it, and had a hard time telling whether it might be mold, or sewage, or something else... pretty ...
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1answer
164 views

underfloor heating and mold forming

I'll be moving into a new house soon. The house has underfloor heating (wet system) throughout and have been told i can't put down wooden flooring. wood is an insulator, it will cause condensation ...
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3answers
8k views

What is this white powder on my foundation?

Can anyone tell me what this white powder might be? I was ripping up the carpet from my basement when I saw this underneath the padding and on the cement foundation. It's white and cakey. I at ...
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4answers
610 views

Combatting moisture in crawl space after venting window is sprayed with insulation?

I had a crawl space (top left) in my house which had a 12"x6" venting window. There is a room above the crawl space, so I decided to spray the walls of the space with closed-cell foam insulation which ...
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0answers
293 views

What is this mold and why does it keep coming back?

This mold-like substance has been growing onto my carpet from the baseboard. I had the carpet cut out and replaced and also sprayed and scraped up the mold on the wood. I came home last night to see ...
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1answer
259 views

Do I need to do any sort of mold mitigation after a bathtub leak damaged a ceiling?

I recently purchased my first house and after the first time we went to use the jetted tub we noticed water damage on the ceiling in the kitchen below. So we got a plumber out there immediately and he ...
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1answer
92 views

Is this mold in my attic?

Looks strange but it is only on one panel of wood. Wouldn't mold be spreading across the boards? There are also a few boards of blue color. That can't be mold can it?
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1answer
390 views

Is this MOLD under laundry room sink?

Just purchased a home and under the laundry room sink I found the below picture: Is it MOLD? If it is MOLD, do I need to get a professional here to remedy the situation or do I scoop it up with a ...
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1answer
261 views

Is this mold from a water leak?

There was recently a leak in our shower on the main floor that was fixed when it was discovered, but it had to have been there for maybe a month. It wasn't a huge leak, and it ended up mostly draining ...
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2answers
75 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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1answer
70 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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1answer
133 views

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
620 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
59 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
1k 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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3answers
3k 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
646 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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3answers
4k 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
1k 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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6answers
290 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
16k 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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2answers
1k 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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1answer
120 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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2answers
1k 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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6answers
24k 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
2k 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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2answers
5k 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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3answers
1k 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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4answers
8k 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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3answers
7k 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
138 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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3answers
290 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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2answers
2k 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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2answers
2k 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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