r/Mold • • Aug 09 '20

Please read BEFORE posting

45 Upvotes

Welcome to /r/Mold

What is this sub?

This sub is for redditors to ask for advice on mold or fungi issues in their home/apartment/workplace/etc If you see spammers or others that violate sub rules, report them, do not take things into your own hands. This sub is NOT for mold remediation, restoration or other contractors, testing firms, laboratories, product or equipment manufacturers or distributors or legal professionals.

Instead, this sub is specifically for individuals looking for general advice. Any offers to do work or make referrals will result in an immediate ban. Please be very wary of those looking for, or offering, business here. We do not endorse any companies, and proceeding with a contractor/consultant/lab you've met via this sub should be done at your own risk. This is not a place to advertise products and or services. It is also not a place to rant about your past problems with mold or companies or services you've dealt with.

Rule #1: No "what is this?" questions.

Do not post a picture and simply ask any of the following (or similar) questions:

  1. "Please I.D. this mold"
  2. "Is this toxic black mold?"
  3. "What kind of mold is this?"

We can not determine the type of mold you have from a photo. That can only be achieved using professional sampling methods and laboratory analysis.

We can speculate on whether or not something is mold but we can't identify it.

Rule #2: DIY Test Kits are bad

If you used a home/DIY test kit there is very little information that we can provide you due to the limitations of the method.

You will need to hire a qualified microbial testing company if you want any reliable information.

Rule #3: No self promotion

This is not the place to advertise your services in any way. No links, no company names, no "informational guides" will be allowed. All offending posts or comments will be deleted and 1 warning will be issued. After that you'll be banned.

General Guidelines and Rules

Overall, please be respectful - things must remain on-topic, helpful, and kind. Absolutely no abusive or hateful language will be tolerated. Even if someone else "started it" with disrespect does not give you permission to use derogatory language or call names.

Bans will be handed out when needed. Remember, no question is too stupid, too simple, or too basic (exception, see rule #1). We're all here to learn and help each other out - enjoy! The mods generally do not remove bad advice, we let upvotes and downvotes run the sub. That way, people can also see what not to do as well. Politics do NOT belong here.

​

  • URL shortener links are not allowed. It's not us, is reddit-wide. A submission or comment with a URL shortner will be spam-filtered automatically.
  • Mods will not communicate with chat, please only use modmail if you have comments or questions.

Submitting a New Text Post in /r/Mold

TL/DR: At the very least be nice, take a few pictures, and include your location.

Again, this is not a place to solicit products and or services. Any posts smelling of self-promotion such as links to a website or service (including all blogs) will be removed. No exceptions. Offenders will be banned.

A few general submission rules.

​

  • We don't allow link posts. Please start a text post and insert links to your pictures along with your text. Posts asking users to participate in a survey are no longer allowed and will be treated as SPAM posts.
  • If you are posting about a problem you are facing, please include pictures! Not just a close-up either, we must be able to discern what you are talking about. What looks right to you may not make sense to everyone else. We recommend you use imgur for photo uploads. See the section below for "How to Upload Photos".
  • Provide your geographic location. (even general, such as upper Midwest). This is especially pertinent when discussing building codes, environmental conditions, seasonal issues, etc.
  • Include a summary of what information you are looking for.
  • Include a general summary of the problem you're asking about. It's helpful to know things like:
    • How long has the problem been going on
    • Where is the mold growth located - room, level, side of the building, etc
    • Any unusual conditions you noticed prior or in conjunction with the discovery of the mold
    • General environmental/use conditions in the space - temp, humidity levels, room use/occupation, recent water issues, smell
  • Do not come here for advice about your health or the relative risk of the mold in your home/work.
  • Don't assume that responses you receive are accurate - we get a lot of "google experts" here giving advice.
  • Product links and recommendations are allowed generally allowed to Amazon/Retail Outlets/Service providers that you've used or recommend. However, referral codes and affiliate links are not. For example, Amazon links containing "tag=XXXXXXXXXXXX" in the title are a referral links - so ideally Amazon links are in the format www.amazon.com/dp/B00VRRVHMA/ - all the extra stuff after those 10 characters are not necessary. Sites/apps can contain ref links without your knowledge and automod will remove and alert you.
  • If you notice your post hasn't appeared within an hour please message the mods and we will release it! To see if it's visible sort by NEW.
  • Please read the sidebar before posting to this sub. There are a lot of questions that get asked fairly frequently, and some of the more common answers have been posted in the sidebar for easy reference. If you still have questions after reading these then by all means create a new post with your questions.
  • Serial posting. This sub is for everyone, not just a single person with multiple questions per day/week. While we don't have a specific rule here, if you are posting multiple topics per day or over the course of a few days, this can result in a temporary ban.
  • If your account is new we may delete your post or comment, especially if we suspect that you have been banned under a different user name.
  • We do not endorse any contractors/inspectors/labs, and proceeding with any you've met via this sub should be done at your own risk.

Commenting in /r/Mold

Be respectful. No name calling or talking down to someone because of something that seems "basic" or "easy" to you. Stand by your knowledge, not childish responses.

If you don't know that your answer or advice is 100% true then indicate that you are speculating or simply refrain from commenting.

Don't throw out comments like:

  • That's toxic mold
  • You need to move
  • Get out of the house
  • Bleach doesn't kill mold
  • That's really bad

Comments designed to scare original posters will be removed. This is a sub to provide reasonable solutions (when possible), not to unnecessarily alarm people. Yes, there are occasions when conditions require some immediate and drastic actions, but most indoor mold growth can be handled without full scale remediation.

Please don't just comment with just a link to a website or to another sub. We are especially careful about links to single websites (this includes blogs) without some summary or commentary. In some cases, we have no way of knowing if you are profiting privately from the site. Also, don't just tell folks to head to sub /r/gohereinstead - like specialized subs for narrow topics. The only exception here would be questions where some time has passed between posting and a lack of responses. We want the commentary, discussion, and knowledge to stay here in our sub on reddit, not just drive people away.

Responses that include a google search, lmgtfy.com, or telling someone to watch Youtube will be removed and the user will be reprimanded. Again, this is all about respect. Obviously, people aren't coming here to Google answers. Help them think about this problem, what they may need, things to watch out for, etc.

Sometimes discussion can get off-topic and we'll remove those comments. This includes political commentary. At times, this can includes jokes. It's a tricky area here, but we've seen instances where the joking side of reddit takes over a thread and the OP never gets their question answered. However, here's we're mostly talking about non-relevant commenting such as this:

Seriously? People live like this? What the fuck is causing mold growth like this? Don't you clean your house? This is not any way to live.

How to Upload Photos

Go to https://imgur.com/upload and drag/choose your photo, you don't even need to create an account. Here's an animated gif on how to drag and drop on PC. Click COPY, then use that copied url link and paste it right in the submission text box on reddit.

My link: https://imgur.com/a/n2lLo

To get fancy and have text rather than the url, place the word you want to use as the link in brackets followed by the url in parentheses.[text goes here](link goes here)

Pictures. Here's a gif of the typing I do, in case that is confusing.

Upload Photos On Mobile The Imgur app works fine, but via a website this is unsupported. There is a workaround: In Chrome, choose ""Desktop site" in the drop-down menu when you are on the upload page and it'll work fine. Then Copy the Link that's produced and paste it into your reddit post/comment.


r/Mold • • Jan 25 '23

Worst building I've ever inspected so everyone worried about their mold problems can relax a little 🙃

Enable HLS to view with audio, or disable this notification

276 Upvotes

Just to remind you that no, you aren't experiencing a disaster. Have a good one yall!


r/Mold • • 5h ago

Chaetomium Detected Twice — Should I Be Worried?

Thumbnail gallery
3 Upvotes

I bought a brand-new home earlier this year and have been dealing with a persistent musty/wet-wood smell in one upstairs bathroom for several months.

There was a small leak from an improperly sealed sink faucet, which the builder repaired. They also inspected the subfloor and found no mold or significant damage.

Multiple inspections using thermal imaging have found no active moisture or visible mold.

I’ve had two separate mold air tests:

Test 1 (September): My Inspector
Vanity: 160 Chaetomium spores/m³
Bathroom: 0 detected
Outside: 280 spores/m³

Test 2 (October): Builders Inspector
Bathroom: 40 Chaetomium spores/m³
Outside: 0 detected

My inspector recommended remediation, while the builder’s inspector said everything was within normal levels.

My questions: Is it normal to detect small amounts of Chaetomium indoors, or is any detection concerning? Could these low counts indicate hidden mold?

What would you do next? Would you open up the drywall behind the vanity to investigate, or do these results seem normal?

The builder considers the issue closed, but the musty smell persists. I’ve got 2 little kids and I’m worried for their safety so any advice would help.


r/Mold • • 10h ago

Shower renovation questions.

Thumbnail gallery
6 Upvotes

Having the shower redone on my 1985 home for the first time. Today was the demo’d day and it revealed a lot. Looks like there was or is a bug problem, but it also looks like there might be mold as well.

I’m concerned that the remodeling company I’m working with will try to slap new concrete board up, tile it, and cover up a potential mold problem because it’s the easiest thing to do. I’ll be speaking with them in the AM, and pausing construction until we get some more clarification, but I also wanted to get some insight from this community how to best handle the situation/hopefully get some insight on how bad this is.

Thank you.


r/Mold • • 1h ago

Widespread or isolated? Oakland California

Thumbnail gallery
• Upvotes

Just moved into this place about two months ago.

Noticed these two areas on the hardwood floor that are discolored. The bathroom smells mildewy. No apparently leaks or visible mold. Four bathroom floor tiles are broken. There's an area next to the shower in the "splash zone" on the wall that has bubbling paint that is malleable/soft to the touch.

This is a single story building. There's a crawlspace, which appears to be exposed. There's areas of the roof that appear to be rotten. The building was built in the early 1900s. Found four roaches in or around the building in two months.

Landlord claims the hardwood floor discoloration is from previous tenant and cosmetic only. He claims that he cannot smell any mold or mildew in the bathroom. He claims that the floor tiles in the bathroom are broken because a previous tenant "dropped something". He claims the bubbling paint is either from water getting splashed up on the wall, or the paint being incorrectly applied.

I've made it very clear that I have zero doubts that there is mold growth somewhere. I suspect in the subfloor for the bathroom, explaining the broken tiles. I've been very firm with the landlord about looking into this and having it professionally inspected. I've quoted directly from state and local to show him that I am aware of my rights. He says he will get someone to come inspect. That was five days ago and I have not heard any updates. He also offered that if I don't feel comfortable here and want to move that he would help me, including with paying for the move.

What do we think is going on here and how widespread do we think this issue is? Should I take The Landlord up on the offer too pay for me to move?


r/Mold • • 10h ago

Is this mold in my attic?

Thumbnail gallery
2 Upvotes

Pic 1 and 2 mold???

Pic 3 definitely mold right?

Any suggestions on how to deal with this??


r/Mold • • 8h ago

These black stringy things were on my Aldi cheese tortellini straight after opening the package and cooking it. The expiration date was April 2025. The noodles tasted of some kind of plastic or cleaner, and also had a weird film. Is this a mold?

Post image
1 Upvotes

r/Mold • • 8h ago

Mold by window?? Ac floor unit

Thumbnail gallery
0 Upvotes

had a terrible idea put a floor ac unit connect to a window with plastic and tape insulating it. One big rainstorm completely soaked it. I’m really afraid of mold has grown as I did a at home test and it said positive. What should I do

I attach some pictures to show when it happened (7/17) and what it looks like now (10/17)


r/Mold • • 9h ago

Is this mold in my apartment?

0 Upvotes

Had a water leak in my apartment from the unit above. Noticed these spots in my apartment ceiling in the area. Was concerned about mold. Am I over reacting?


r/Mold • • 10h ago

Is this mold?

Thumbnail gallery
1 Upvotes

We recently moved into the home I didn’t notice these spots in the room before and I swear they’ve sort of spread we’re unsure if it’s mold. Concerned because we’re planning on this being our babies room. Any thoughts? We had our home mold tested before we moved into the home and everything came back clear. About a month later these spots showed up.

Update: our wall is plaster


r/Mold • • 11h ago

Need advice asap please!!

Thumbnail
1 Upvotes

r/Mold • • 11h ago

Is this some type of mold??

Thumbnail gallery
1 Upvotes

r/Mold • • 11h ago

Is this Mold?

Post image
1 Upvotes

r/Mold • • 12h ago

Is this mold?

Thumbnail gallery
1 Upvotes

I notice the baseboard next to my shower looks like this, is is mold?


r/Mold • • 12h ago

Need help with mold removal on carpet

1 Upvotes

I need to cut a patch that has a really bad mold problem. it's covered and taped but Google is saying to cut with a 6 inch buffer or a 3 inch. Which should I do because with the 6 inch it basically makes a hole about an eighth of the room big and I haven't found a matching patch at home Depot or lowes, it's covered with a bag and baking soda but I would imagine just cutting it out and dealing with the carpet situation later would be better right? Idk any advice would be amazing asap


r/Mold • • 14h ago

Top of shaving foam bottle

Thumbnail gallery
1 Upvotes

This is the top of my shaving foam bottle which I keep in my bathtub, aside from being a generally humid place and getting loads of water when the shower is used no clue what it could be.

I guess it's some kind of black mould which is common in very humid areas here, but I have never seen it making an actual hole in a plastic lid!

Is this dangerous?


r/Mold • • 15h ago

Is this concerning?

Post image
1 Upvotes

Looked at a house that checks all the boxes except for this one spot where an ac window unit leaked and caused some water damage. I don’t know how long ago it was or how long it went undetected. Didn’t smell any mold but wondering if the dark areas is mold growth? The floor has buckled in one spot.


r/Mold • • 15h ago

Apartment maintenance says this is normal and "our fault" for taking hot showers

Thumbnail gallery
1 Upvotes

We noticed a musty cat piss smell all over our apartment starting two days ago (we do have a cat but she's never gone outside her litter box before), then saw mold popping up starting yesterday. By this morning it already spread to the ceiling in the bathroom. Our apartment maintenance came by, took the vent covers off and left. They're saying that this is completely normal and that it's our fault it happened. We've lived here for a year and haven't done anything different in the last week. Wondering if anyone has any thoughts on if this is an air conditioning issue or possible roof leak (we live on the top floor)?

These pictures are one bathroom and the main living room vent, but the mold is in every single vent in the entire apartment.


r/Mold • • 16h ago

mold in my university shared bathroom. is this a health hazard?

Post image
0 Upvotes

r/Mold • • 18h ago

Should I remove the mold with bleach or white vinegar?

Thumbnail
1 Upvotes

r/Mold • • 19h ago

Is this mold? How do I fix?

Thumbnail gallery
0 Upvotes

r/Mold • • 19h ago

Is this mold

Thumbnail gallery
1 Upvotes

Is this mold


r/Mold • • 20h ago

Is this mold? Is there a way I can test whether it is or not?

1 Upvotes

r/Mold • • 20h ago

Popcorn ceiling mold?

Thumbnail gallery
1 Upvotes

Hello!

One small section of a bedroom popcorn ceiling has some discolouration.

Would this be mold or something else?

Thank you.


r/Mold • • 21h ago

Is this mold?

Thumbnail gallery
1 Upvotes

I feel like I’m being gaslit by family members… but please correct me if I’m wrong Reddit. There was always a black marking on this popcorn ceiling but now there are more black spots showing up over time. Is it mold? If it’s not mold what could it possibly be? My sinuses and breathing are bad inside this house but they’re kind of bad anyways because of the region I live in and poor air quality.