Mold in Bathroom
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Mold in Bathroom (by LordZen [MA]) Oct 30, 2022 5:40 PM
       Mold in Bathroom (by Jason [VA]) Oct 30, 2022 5:43 PM
       Mold in Bathroom (by DJ [VA]) Oct 30, 2022 6:58 PM
       Mold in Bathroom (by Vee [OH]) Oct 30, 2022 7:56 PM
       Mold in Bathroom (by Pat [VA]) Oct 30, 2022 7:56 PM
       Mold in Bathroom (by plenty [MO]) Oct 30, 2022 7:57 PM
       Mold in Bathroom (by RB [TN]) Oct 30, 2022 8:08 PM
       Mold in Bathroom (by 6x6 [TN]) Oct 30, 2022 9:00 PM
       Mold in Bathroom (by Small potatoes [NY]) Oct 30, 2022 9:03 PM
       Mold in Bathroom (by LordZen [MA]) Oct 30, 2022 9:30 PM
       Mold in Bathroom (by Still Learning [NH]) Oct 30, 2022 10:58 PM
       Mold in Bathroom (by LordZen [MA]) Oct 31, 2022 1:49 AM
       Mold in Bathroom (by Bonanza [NC]) Oct 31, 2022 6:14 AM
       Mold in Bathroom (by Steve [MA]) Oct 31, 2022 6:54 AM
       Mold in Bathroom (by Still Learning [NH]) Oct 31, 2022 8:16 AM
       Mold in Bathroom (by Robert,OntarioCanada [ON]) Oct 31, 2022 8:36 AM
       Mold in Bathroom (by Dee Ann [WI]) Nov 1, 2022 9:37 AM
       Mold in Bathroom (by LordZen [MA]) Nov 1, 2022 7:09 PM
       Mold in Bathroom (by Lynn [MA]) Nov 1, 2022 9:01 PM
       Mold in Bathroom (by LordZen [MA]) Nov 3, 2022 12:57 AM
       Mold in Bathroom (by Busy [WI]) Nov 3, 2022 2:08 PM
       Mold in Bathroom (by LordZen [MA]) Nov 4, 2022 1:08 AM
       Mold in Bathroom (by LordZen [MA]) Nov 7, 2022 6:08 PM
       Mold in Bathroom (by LordZen [MA]) Nov 10, 2022 9:33 PM
       Mold in Bathroom (by Still Learning [NH]) Nov 10, 2022 9:56 PM
       Mold in Bathroom (by Steve [MA]) Nov 11, 2022 5:52 AM
       Mold in Bathroom (by LordZen [MA]) Nov 11, 2022 9:43 PM
       Mold in Bathroom (by LordZen [MA]) Nov 11, 2022 9:43 PM
       Mold in Bathroom (by Still Learning [NH]) Nov 11, 2022 10:11 PM
       Mold in Bathroom (by Steve [MA]) Nov 12, 2022 9:10 AM
       Mold in Bathroom (by LordZen [MA]) Nov 13, 2022 7:23 PM


Mold in Bathroom (by LordZen [MA]) Posted on: Oct 30, 2022 5:40 PM
Message:

Hello everyone, I notice mold in my 2 bathrooms on 1st floor, not a big deal, I mean, not much, but yes it is there, we cleaned with Clorox for Mold and Mildew, CLR Mold and Mildew, and it seems to work for 2-4 weeks and then comes back.

3rd-floor bath also has this but is worst than in our bathroom, in the 3rd floor is a customized shower that fit one person, they just reported this yesterday, and say it has been like this for 2-3 months, at the last visit we didn't noticed or smell any mold, they had been cleaning it and say they thought it was something they can deal with... They have a 1-year-old...

Should we contact a mold remediation company? I had quoted to fix the 2 bathrooms on the 1st floor, 1 of the quotes was for only 1 bathroom, 17K, and the complete bathroom re-done. ... The 2nd quote was 10k for 1 bathroom, and just working in the tub area, not removing tiles or anything, if we want to change the vanity and toilet, that is extra...

What is my best bet for now? Running a little short on budget for big projects...

Any suggestion will be gladly appreciated. --98.216.xx.xxx




Mold in Bathroom (by Jason [VA]) Posted on: Oct 30, 2022 5:43 PM
Message:

The best way to prevent mold is to hard wire a bath fan (ducted outside) to come on any time the bathroom light is on. --172.58.xxx.xxx




Mold in Bathroom (by DJ [VA]) Posted on: Oct 30, 2022 6:58 PM
Message:

It is a mold problem for you to deal with if it is coming from inside the wall - like from where there was a previous leak & the repairs were not thorough enough. Or a current leak.

It is a mildew / housekeeping problem for them if it is on the surface of the wall.

Which is it?

Like Jason said, you do need to have proper ventilation in a bathroom.

Although, truthfully, I have managed to keep my bathroom mildew-free without ventilation when I had to. Like open the door, use a portable fan, clean.

If they are generally good housekeepers, and the problem is persistent, you should investigate further.

How old are your pipes? Any chance there is a pinhole or two somewhere inside the walls? Have you ever had a roof leak, or other type of leak in those general areas - and perhaps not all of the damp drywall was removed or the wood was't dried out?

Personally, I would never pay that king of money to a "mold remediation" company. Especially one who already told you they basically aren't going to do anything but maybe clean. What does "just working in the tub area" mean? --68.229.xxx.xxx




Mold in Bathroom (by Vee [OH]) Posted on: Oct 30, 2022 7:56 PM
Message:

Reduce water and increase ventilation, open a window - pickup damp towels from floor and remove to washing machine - hire a maid to do this basic housekeeping. --76.190.xxx.xxx




Mold in Bathroom (by Pat [VA]) Posted on: Oct 30, 2022 7:56 PM
Message:

One thing we discovered in our "mold" complaint house, her dryer was completely stopped up, I'm sure that didn't help.

Glad we found it out before it caught on fire. I did have a big girl tenant throw a dryer out of the trailer on that was on fire last year! --216.126.xx.xxx




Mold in Bathroom (by plenty [MO]) Posted on: Oct 30, 2022 7:57 PM
Message:

I'm confused. Your own home or a rental. Sounds like a rental but "we" are cleaning it? Tell more about the age of the home and if there are fans or windows. Could there be a leak and no air flow? Do they keep the door closed when it needs to be open? Some people close the bathroom door to keep out cats and dogs or perhaps babies. --172.56.xx.xxx




Mold in Bathroom (by RB [TN]) Posted on: Oct 30, 2022 8:08 PM
Message:

Lack of maintenance or Tenant Lifestyle issues.

--24.183.xxx.xxx




Mold in Bathroom (by 6x6 [TN]) Posted on: Oct 30, 2022 9:00 PM
Message:

I agree with others that there needs to be proper ventilation. Also be sure there are no leaks. --73.113.xxx.xxx




Mold in Bathroom (by Small potatoes [NY]) Posted on: Oct 30, 2022 9:03 PM
Message:

in my old home even w bath fan on the tile would get darkened along the bottom, so once I regrouted I made it a practice to wipe down the walls after showering. walls remained in excellent condition for years. my mom's vacay bathroom is small and there is a a squeege to get the water off of them. I had tenants who didn't clean tub area and they had big spots of mold. I cleaned it once and gave them microbium and told them it's a housekeeping issue. they couldn't be bothered to keep it up and things returned to the way they were.

lordzen, was this an issue w the previous tenant? --172.58.xxx.xxx




Mold in Bathroom (by LordZen [MA]) Posted on: Oct 30, 2022 9:30 PM
Message:

Jason thanks, I had a fan vented out in all of our bathrooms...

Jason there is no visible leak as long as I am aware. The house is from 1890, and most of the pipes are not new... The quote was not with a Mold Remediation Company, it was with a GC to re-do the bathroom, one quote is to do the full bathroom, and the other quote is with a Bathroom company, they don't do GC work, just bathroom tubs, custom bathroom and those things...

Vee on my 1st floor these 2 bathrooms are not located near to a window, but I have fan on both of them, in the 3rd floor the bathroom yes has a window and fan too.

PAt our dryer is in the basement and tenants do not have access to it.

Plenty I own a multi-family, live on the 1st floor, and rent another floor. On my floor, 1st floor, we have 2 bathrooms, in our 1st floor we cleaned with Clorox for Mold and Mildew, CLR Mold and Mildew, and it seems to work for 2-4 weeks and then comes back. House is from 1890. 1st-floor bathroom no windows and yes 2 new fans less than a year and did the test with the fan on and a piece of toilet paper to see the suction power and it is good. The 3rd-floor bathroom yes has a big window and fan too. There are no animals in the building.

Small potatoes good idea about regrouted, I just don't want this issue to become bigger, how can I deduct/confirm that this is not something major? The water bill seems to be the same, so if there is no sign that there might be a possible leaking, I will have to open the wall to look at the pipes... Let me google that Microbium. No, it was not an issue with previous tenants, or not that i we were never communicated of it. --98.216.xx.xxx




Mold in Bathroom (by Still Learning [NH]) Posted on: Oct 30, 2022 10:58 PM
Message:

Iíve seen the toilet paper stick but the fan still not strong enough because it was blocked with a bird nest, the flapper sealed shut, hole in the vent hose, etc. In every case once the fan was fixed/replaced, the mildew killed with Concrobium and repainted the issue was solved. --75.67.xxx.xxx




Mold in Bathroom (by LordZen [MA]) Posted on: Oct 31, 2022 1:49 AM
Message:

Still Learning thanks, I already check the vents, all clear. I already ordered that Concrobium today as soon as Small Potatoes mentioned. --98.216.xx.xxx




Mold in Bathroom (by Bonanza [NC]) Posted on: Oct 31, 2022 6:14 AM
Message:

Just had a little mold above a plastic shower tub combo. Turns out it was a leaking vent pipe on the roof. Water was coming in and running down the pipe into that wall area.

Rubber vent pipe boot needed to be replace. Easy fix. --65.188.xxx.xxx




Mold in Bathroom (by Steve [MA]) Posted on: Oct 31, 2022 6:54 AM
Message:

LZ, since you have fans, I'm inclined to agree with Still Learning that they are not working properly.

Turn the fans on & see if a piece of TP will stick to the grill. This won't tell you if they are doing a good job but it will at least give you an indication of whether or not they are drawing air out of the bathroom. We've found fans that were ducted to attics or just into the ceiling joists space but not to the exterior. So all they were actually doing was just basically nothing except getting some of the moist air out of the immediate vicinity of the bathroom.

Presuming that the fans are actually working you now need to determine if they are taking the air outside.

Leave the fans on & look on the exterior to insure that the flappers are actually opening & have someone shut them off to see if they really close properly. Vents that don't shut completely allow easy access for birds to enter. You can use either an electric leaf blower or a the blower of a shop vac to send air from the bathroom to the exterior. In order to do this you will need to remove the fan assembly to access the duct work. Most fans are easily removed for replacement so it shouldn't be a big deal to take it out. You can also use the shop vac to try to vacuum out the duct work from both the inside & the outside of the house. ://www.airkinglimited.com/blog/ventilation-diagnostic-5-ways-to-check-your-bathroom-exhaust-fan/

After the duct is clean the next thing to check is the volume of air that the fan is moving. In order to do this correctly you would need to use a flowhood to calculate the volume of air being drawn into the exhaust vent. Since most LLs don't have access to one, I doubt that you'll be able to do this. IMO instead of having a testing company come to verify the airflow you be better off just skipping the test & upgrading the fan.

If I was having these issues after having verified that the ducts were not obstructed, I'd just upgrade the actual fan. Most manufactures offer fans which can basically swapped out from the interior. For my clients & even for my rentals I like the Panasonic line of bathroom exhaust fans. Before you select your fan you need to calculate the volume of the room. being an older building, I presume that your baths all have 8'-9' ceiling heights so I'm guessing that you'll need a 150CFM or even larger fan to adequately remove the moisture. You might also consider getting one that has a built in humidistat especially since several of you bathrooms are having mold / mildew issues.

In addition to cleaning the ducts & upgrading the fans you also need to be sure that there is a source of makeup air. This can be done by either undercutting the door to the bathroom of installing a grill to bring air into the bathroom from an adjacent space.

I further suggest that you use one of the mold / mildew killing paints that both Kilz & Zinsser make to paint all of of your bathrooms. ://www.homedepot.com/s/mold%20preventing%20paint?NCNI-5

Lastly while you're checking & cleaning ductwork don't forget to do the clothes dryers.

--72.93.xxx.xx




Mold in Bathroom (by Still Learning [NH]) Posted on: Oct 31, 2022 8:16 AM
Message:

Thank you Steve for finishing what I forgot to add. My electrician and I would be on the phone while one was outside checking to see if the vent flaps opened while one was inside turning the fan on and off. That was the key to figuring out the fan was not working properly. Once fixed the vents opened appropriately with the fan turned on. --75.67.xxx.xxx




Mold in Bathroom (by Robert,OntarioCanada [ON]) Posted on: Oct 31, 2022 8:36 AM
Message:

Breaking out walls then spray foaming will decrease mold as the surface is not be cooler. Installing a exhaust fan along with humidity switch so exhaust fan automatically comes on as tenants are too lazy. Switching out to low flow shower heads will decrease humidity along discarding old shower heads to low flow shower stays in. Fiberglass insulation is the worst for mold as air pockets develop. It is easier to keep a bathtub then install a shower providiing there is space where bathtub is four piece bathroom including a shower. --68.69.xxx.xxx




Mold in Bathroom (by Dee Ann [WI]) Posted on: Nov 1, 2022 9:37 AM
Message:

LORDZ: The mold proof paint mentioned by STEVE above worked for us when we found mold on walls in a bathroom closet that would continue to return.

We have also found that if a tenant wants to save $ by not using heat or A/C when needed, or took hot baths regularly without wiping down the bathroom, shower area and walls, the fan was not enough to keep the moisture level down. If this is the case you may find windows in other rooms of the unit have moisture on them too.

We've begun to clean out the ducts and dryers at least annually to keep them running better and as a fire prevention measure.

Please continue to let us know what you determine it is - housekeeping or otherwise so we can learn from your experience. Lots of good ideas to continue your investigation. --75.11.xx.xx




Mold in Bathroom (by LordZen [MA]) Posted on: Nov 1, 2022 7:09 PM
Message:

Bonanza thanks I will take a look as well.

Steve hi friend. I did that, left the fan on, and check outside to see if the flap windows were open all the way and closing all the way, and they were working correctly, I need to try with the leaf blower and see if anything comes out.

No I don't have the flowhood, yes I will check which fan we have an upgrade them. Yes, clothes dryers were checked too. --98.216.xx.xxx




Mold in Bathroom (by Lynn [MA]) Posted on: Nov 1, 2022 9:01 PM
Message:

The exterior grade oil kilz will cover everything but the smell might knock you out --71.174.xxx.xxx




Mold in Bathroom (by LordZen [MA]) Posted on: Nov 3, 2022 12:57 AM
Message:

Lynn hi and thanks, I used the Killz to paint a room where a previous tenant used to smoke without our authorization (they already move out, and this is my 2nd-floor unit), and it worked really well, in HD when I purchased the paint, they were selling a pouch of scent that you pour it to the paint, and it gives a different scent, it worked pretty well. --98.216.xx.xxx




Mold in Bathroom (by Busy [WI]) Posted on: Nov 3, 2022 2:08 PM
Message:

Type of shower curtain can also affect mold in shower area. On my own home, I switched away from the shower curtains that need a vinyl liner probably a minute after the first time I ever spotted mold. Since then have ONLY used the fabric shower curtains that donít use a liner. I buy mine at Home Depot or Menards. Because there is no layer of vinyl in there, air flows better. Nifty thing with these shower curtains is, IF you use the cheap plastic curtain rings, washing the shower curtain couldnít be easier. Simply slide the curtain rings off the tension rod, pop the whole thing (curtain AND rings) in the washer. Hang back up in bathroom to dry. Mine is twelve years old, still looks new.

Downside to these fabric curtains is they only come in boring light colors: boring white, boring tan, boring lt blue, maybe boring gray, boring light green. Iíve started to supply them in my rentals, thinking not only is it better for preventing mold, but its a cheap, but nice welcome item when tenants are hustling to move and get the rental truck back in time. One tenant didnít use it, switched it for fancy fabric curtain and vinyl liner, then later asked about mold in bathroom. It was nice to be able to say, ĎYa know that shower curtain I supplied, but you didnít wantÖ .í Tenant DID follow my advice on how the clean their vinyl and fabric set ( yucky with mold, ugh!) and has since gotten a handle on the situation. --172.56.xx.xxx




Mold in Bathroom (by LordZen [MA]) Posted on: Nov 4, 2022 1:08 AM
Message:

Steve Dee Ann and Lynn, the Kilz paint will work in a custom-made shower? Those plastic alike fitted showers that only fit 1 person, when I used it, it was for bedroom walls.

Busy really? Never heard of that, doesn't that make a lot of water spill outside? In my bathrooms, outside of the bathtubs, I don't have drainage. --98.216.xx.xxx




Mold in Bathroom (by LordZen [MA]) Posted on: Nov 7, 2022 6:08 PM
Message:

Update: used the Concrobium last Wed and everything looks fine for now, will keep you posted. --98.216.xx.xxx




Mold in Bathroom (by LordZen [MA]) Posted on: Nov 10, 2022 9:33 PM
Message:

Update: Upgraded the bathrooms exhaust fans, everything is so far so good, no complaints from the tenant. Either way I will give 2 more weeks to see how is going, after that I will paint the shower with Kilz Anti Mold. --98.216.xx.xxx




Mold in Bathroom (by Still Learning [NH]) Posted on: Nov 10, 2022 9:56 PM
Message:

When I have used kilz or kilz mold killing primer it has been on drywall. Are you asking about painting fiberglass or tile? --75.67.xxx.xxx




Mold in Bathroom (by Steve [MA]) Posted on: Nov 11, 2022 5:52 AM
Message:

Glad to hear that you're getting this issue under control. --72.93.xxx.xx




Mold in Bathroom (by LordZen [MA]) Posted on: Nov 11, 2022 9:43 PM
Message:

Still Learning is like those custom-made showers, yes I think is Fiberglass --98.216.xx.xxx




Mold in Bathroom (by LordZen [MA]) Posted on: Nov 11, 2022 9:43 PM
Message:

Steve thanks you you and everyone's recommendation. --98.216.xx.xxx




Mold in Bathroom (by Still Learning [NH]) Posted on: Nov 11, 2022 10:11 PM
Message:

I havenít read the back of the can, but Iím not sure it would stick to that type of surface. Maybe Steve or someone with more knowledge could speak up. If itís a fiberglass type surround, I would think cleaning chemicals would solve the problem. --75.67.xxx.xxx




Mold in Bathroom (by Steve [MA]) Posted on: Nov 12, 2022 9:10 AM
Message:

LZ, before I considered painting a fiberglass tub assembly, I'd be inclined to give it a very good cleaning & perhaps use some boat or car wax on the walls. Make sure if you do this to only wax the walls & not the floor or the threshold where people will step.

If there is some issue other than a mold / mildew issue & you feel the need to paint it I would give it a real good cleaning & use this

://www.kilz.com/primer/kilz-adhesion?gclid=6581a04d07051645e548c322a0bbb21b&gclsrc=3p.ds&msclkid=6581a04d07051645e548c322a0bbb21b&utm_source=bing&utm_medium=cpc&utm_campaign=KILZ_NA_NA_Masterbrand_AWA_Bing_Search_KWB_Copy_BRD_CPC_NA&utm_term=%2Bprimer%20%2Bpaint%20%2Bkilz&utm_content=Kilz_Primer_Brand

I've also use left over boat paint to extend the life of an ugly fiberglass tub for another few years. --72.93.xxx.xx




Mold in Bathroom (by LordZen [MA]) Posted on: Nov 13, 2022 7:23 PM
Message:

Thanks Still Learning and Steve, I used the Concrobium and for now everything is fine, I just thought to go above and beyond trying to nip this in the bu..

I am reading about that kilz paint --98.216.xx.xxx





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