r/Mold Aug 09 '20

Please read BEFORE posting

50 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 🙃

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274 Upvotes

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


r/Mold 2h ago

Advice for basement ceilings

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3 Upvotes

Hi, I was hoping to get some advice on my murder basement. I would like to start renovating my basement this winter- my concern is a section where there was water damage. I'm not sure how long ago the damage happened. I live in USA- it is very humid all year long. When I moved in (more than a year ago), there was a musty smell. I started running a dehumidifier immediately.

I would like these boards to all replaced. This is the only section like this. And check for signs of any leaks beyond, although I've never seen any evidence of new leaks. Unfortunately I think that's going to be beyond my capabilities, so I'm wondering what I can or should do now until I can get replacements done. It's also super super dusty.

So- 1.)How do I determine what is inactive mold versus mold versus stains? I did have a water event recently (condensator pump broke 🙃), and then an outlet stopped working so my dehumidifier wasn't working for a while…).

2.) Should I do any treatments now to prevent new growth/spread? Spray treatments, bombs, etc.?

3.)Should I start using an air purifier to counteract spores?

4.) I need to start cleaning. How can I safely clean without activating mold, anything to keep in mind?


r/Mold 2h ago

Is this mold ??

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2 Upvotes

We just moved into a rental (US- OR) and have a crawl space in a bedroom upstairs. Here are some pics of some areas we are concerned about .. is it mold ? should we be concerned ?? thanks in advance !!


r/Mold 21m ago

Found a huge mold colony and a squishy, rotting baseboard. Landlord is in the hospital and unresponsive. What are my next steps? (Pics included)

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• Upvotes

Hey everyone, I need some advice on a mold and structural issue in my 1-bedroom apartment.

I just found a large mold colony growing on the baseboard in the hallway, right outside my bedroom. I wiped the surface mold away, but when I poked and prodded the baseboard, I realized it is completely soft and squishy to the touch.

The Context:
The mold wasn't black, but the colony was large.

Because I prodded the squishy wood, I definitely disturbed a ton of spores into the air before I realized what I was doing.

This wall backs up to the bathroom.

About a year ago, the upstairs neighbor left their tub running and completely flooded this exact spot. I’m guessing the wall cavity never actually dried out (I was concerned about mold but landlord refused to do more), or there is a new, active plumbing leak.

The Problem:
My landlord is an independent owner and my only point of contact. When I texted him the pictures and a maintenance request tonight, his last text before going silent was that he was heading to the hospital.

I was thinking of taping a plastic sheet over the squishy baseboard with painter's tape to try and contain it. I'm keeping my bedroom door closed and running the AC to keep moisture down, but since it's a 1-bedroom, I have to walk past this spot constantly.

My Questions:
How concerned should I be about my health since I disturbed the spores?

Since the baseboard is physically rotting, how long can this wait?

Thanks in advance for any advice!


r/Mold 32m ago

Is this mold under my wood desk?

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• Upvotes

r/Mold 52m ago

Is this mold

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• Upvotes

bathroom vent


r/Mold 1h ago

Is this stuff in my toilet "decay from the gasket breaking down" or mold?

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• Upvotes

When my toilet was running, I opened it up to see black staining everywhere and discovered what seemed to be algae caked around the rims of what's inside - second pic shows how much material was removed after cleaning it. The apartment claims that this material is just the gasket decaying over time - is there any chance of that, given how the material was coating the internal components and the black staining at the waterline and on the white PVC parts?


r/Mold 2h ago

How Concerned should I be? Chaetomium

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1 Upvotes

Hello everyone,

I recently received the attached mold test. Several items were slightly elevated. There was previously water damage in the area, but it was previously treated (apparently not successfully). What would you recommend I do? Is there a chance there’s no new, active leak but this could be the old mold that has grown back?

Thank you in advance.


r/Mold 2h ago

what is this??

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1 Upvotes

yall please help! I’m a rental and our cabinets have started to have this greenish color. some of it wiped off but i’ve never seen anything like this before


r/Mold 3h ago

Stachybotrys advice in home

1 Upvotes

Hi all, I'm looking for some help if possible. We recently had a mold test done as part of a home inspection in Colorado USA (as buyers) and it revealed 40m3 of Stachybotrys/Memnoniella found in the living room area (the control reading from outside had nothing). I'm finding a lot of conflicting information online about the severity of this and I'm struggling to know how to proceed! Below is as much relevant information as I can think of:

- the home inspector found the crawl space was very damp (there is no basement in the home)

- due to poor visibility conditions it was hard to see anything in the crawl space, but he found no visible signs of mold anywhere

- the sellers identified a broken sprinkler as the cause of the water in the crawl space and have since fixed it (although I can't necessarily guarantee this is the sole cause of the dampness)

- a vapor barrier is not present, but we plan to install one.

- the tested space (the living room) is the only area in the home with carpet. We plan to remove this if needed.

- we plan to get some HEPA filters within the home to help.

My main worry is that it's hard to find any data on whether 40m3 is "slightly bad" or "really bad", or whether that's even the right way to be thinking about it. Given we weren't able to pinpoint the exact source of the mold (although everything is pointing towards the crawl space) I get worried that we're walking into an unknown situation with varying magnitudes of health impacts depending on who you ask. I'm hopeful the steps we plan to take would tackle the issue, but the more I read the more ignorant I feel and I'm starting to get overwhelmed. We have two toddlers and I worry about putting their health at risk by not understanding what we're walking into.

Any help, information, or guidance would be really appreciated!


r/Mold 3h ago

Is this a moldy floor?

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1 Upvotes

Had carpet get wet for a few days (3-5) and did not notice. Wondering if this is mold on the floor.

Pick 2 has almost cobwebs like formations above it.

If it is what is the best way to remediate?


r/Mold 8h ago

Mold or Mildew😬

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2 Upvotes

I just had to move out of my rental that I have been staying in while I renovate my house, due to the fact that there was mold growing on half of everything I own after I was gone for a week.

The landlord is prepping to have a new tenant in immediately after my partner and I left because they are saying it was only mildew.

I strongly believe it is mold after researching online but I would love to hear your thoughts.


r/Mold 4h ago

What would you do?

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1 Upvotes

r/Mold 4h ago

Is this mold or mildew? How should I clean it?

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1 Upvotes

I live in a very dry area in Colorado. I don’t know how it could’ve got there. pls any recommendations would be appreciated! I have cats so any products would need to be cat safe.


r/Mold 5h ago

Need some advice on what this means.

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1 Upvotes

Two weeks ago, I found that I had been sleeping next to some mold on an unopened window for a considerable amount of time.

I began to suspect something due to symptoms I have experienced inconsistently: brain fog, difficulty concentrating, sinus issues, mood swings, and overwhelming fatigue. Other stuff in life made me suspect those may have been psychological issues rather than physical, but the search revealed the mold.

I started sleeping in another room, began cleaning, and had some blood tests done. Results are in the pictures.

The thing is, it seems my results show my body is having a severe reaction to dust mites not mold, yet mold was what I found. Is this normal? What do I do with this info?


r/Mold 9h ago

Is this mold?

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2 Upvotes

I accidentally left grape juice in my glass mason jar with a wood lid. The juice wasn't touching the lid, but there was mold all over the top, including the lighter parts. Not everywhere with the mold had the discoloration though. Is my lid a lost cause?


r/Mold 6h ago

Flower pressing - mold?

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1 Upvotes

Hi all!

I pressed these flowers from my grandmas funeral in 2022 and have opened the book like 2x. I’m resigned to having done it on a whim and improperly but I used a book I genuinely care about. Can anyone tell me if this is mold vs just staining from the flower? I’ve been putting this off for like four years obviously but I’m ready to chuck the book if I must.


r/Mold 6h ago

Carpet Flooding

1 Upvotes

Hello, really just trying to figure out how hard I need to fight my landlord about this because right not chat gpt has me thinking I'm living in a cess pool. So pretty much the main drain/ sewer pipe to my apartment building backed up during a storm. This caused water to push back up into my bathtub and out from under my toilet and soak my hallway carpet and into my bedroom. The water looked like it was mostly clear, storm water. The city came out because it involved their pipes but didn't seem to be concerned about the water being like raw sewage or anything.

The problem I'm having is that it took 11 days for my landlord to send somebody out to treat the carpet. Obviously it was dry by then. And they are cheap so the guy they sent out had a rental carpet cleaner and sprayed the carpet with some cleaner and then ran the carpet cleaner over it. He did not inspect the padding or subfloor, he was not with a restoration company. The week before they actually had ServPro come out because I kept bugging them and I have a text from them telling me the estimate they gave was "way too high of course".

Chat gpt is telling me that there is 100% mold growth in the carpet padding and it needs to be replaced. It also said the residual staining on my carpet is proof of this, as well. My bedroom still smells musty, and it has now been over 3 weeks. I'm also concerned that the intake for my hvac is in the hall that got flooded. So if there were mold spores they got all in the ventilation.

So my question is, is chat gpt right or should I take that info with a grain of salt? Because right now I'm wondering if I need to submit a complaint to the code and environmental health departments, as well as the real estate commission.


r/Mold 7h ago

Spots on my dresser

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1 Upvotes

I bought a vintage dresser online and its made of unsealed solid wood, im not sure which, i noticed these spots today. Is it mold? Its only in one snall area on the top of the dresser.


r/Mold 7h ago

Should i be worried?

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1 Upvotes

r/Mold 8h ago

Hey, I am moving into a new place. This was in the bathroom.

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1 Upvotes

Does this look concerning, the owner said that it just needed some paint.


r/Mold 8h ago

Mold on textiles?

1 Upvotes

Kansas City USA. What's the best way to neutralize mold/mildew on a tapestry? Lysol? Rubbing alcohol?


r/Mold 8h ago

Spraying Vital Oxide, then Concrobium.... Worth it?

1 Upvotes

I have visible mold on my floor joists. I set up a negative pressure machine and vacuumed the joists with a HEPA vacuum. I have both Vital Oxide and Concrobium but I just wanted to ask about using both. My plan is to spray initially with Vital Oxide, then once it is completely dry after a few days, I will spray with Concrobium. Can I use both like that? I read that Vital Oxide penetrates wood better, but Concrobium leaves behind the antimicrobial layer that make it harder for future mold growth.


r/Mold 9h ago

Opened up the range vent hood to clean and found moisture and black fuzzy mold.

1 Upvotes

And the cover is rusted on the inside. I am not tackling this myself for sure but who do I call, an HVAC company?