Questions tagged [mold]

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

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28 views

Mold on cedar siding

Bungalow style home in Milwaukee WI with finished attic. Can access the Southern portion of the attic,via a crawl space,but not the opposite side. We had ice dams this winter and there is mold on the ...
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1answer
887 views

Mold or rust stain on roof truss

Paid a visit to my attic earlier today to see if there was any winter damage. Looking all good except for a small piece of truss that has a black stain on it (see picture). I would have said mold ...
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1answer
38 views

Can you get rounded inside corners in a shower enclosure rather than 90° corners? [closed]

The one-piece, 1978-era tub/shower, in my home has rounded inside corners all the way up the walls which makes it much easier to clean and resistant to mold. I want another shower like that, but all ...
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92 views

Me and my mom and dad moved to a older house since we have moved in we have had health problems

Me and my mom and dad have been having health problems since we have moved in our house in October , have brain fog and anxiety and my alleges and ashms and rashes and my mom and dad have been having ...
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72 views

Can this garbage disposal be saved ? Black gunk doesnt drip down to cabinet floor but my skin crawled when i saw this?

Garbage disposal is about 3 years old. It got jammed , so i tried to find the reset button on bottom. It wouldnt budge so i got a flashlight and got on the floor to make sure i was pressing right ...
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1answer
71 views

Should I repair this very small area of minor water damage on my bathroom floor?

I’m getting ready to install LVT over existing VCT in my bathroom, and when I pulled up the shoe molding I discovered that the corner of the floor next to the shower has a slight soft spot at the very ...
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2answers
58 views

Does mould growth definitely indicate a leak?

I've moved into a new place that had some mould growth on the ceiling in one of the bedrooms. I found a leak in the roof that corresponded and patched that up and cleaned up the mould. A few weeks ...
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1answer
21 views

How much stainblock paint to use in bedroom and where?

I'm renovating my bedroom. On the north wall, there will be freestanding cabinets (wardrobes) against the wall; all interior walls except to the right (east) which is exterior. There's no previous ...
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1answer
33 views

What could cause a central A/C system to smell but only after central heating had been used?

We have a central heating and air conditioning system in a single family home (in Southern California), where there is a large intake vent in the house that goes directly to the central house fan and ...
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2answers
36 views

Mold on below grade garage block walls

I have a below grade 2 car internal garage.  Basically the house is built into a slope that rises toward the back yard with the garage doors on the front of the house.  So the rear wall is completely ...
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3answers
130 views

Should I use vapor barrier for a framed floor over a slab?

What to do about the vapor barrier? I am currently using a formerly unheated basement room as home office. The room is not properly insulated and rather hard to keep warm. I am thinking about ...
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1answer
22 views

Replace or clean stained carpet after mold issues?

I moved into a new build just over a year ago, and a few months in mold issues occurred in the nearby closet. The main cause of this was an exterior concrete wall which was still drying, and led to ...
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2answers
93 views

What kind of treatment should I use on bottom wall plates to prevent decay?

I have a bathroom project in my basement. I made the mistake of not using pressure-treated lumber for the bottom plate. Everything is roughed in, and I have access to the framing since I haven't put ...
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1answer
58 views

Does mold in a loggia means that the loggia must be replaced?

My apartment has a loggia which used to be a balcony (it is now an extension of the living room without any separation between them - the door that was there was removed). This was done by the ...
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1answer
110 views

Is this mold or just black wood?

Are the black spots on my OSB mold? If so, should I be concerned? We had a problem with vent but has been corrected. Thanks. Image is of worse area in attic.
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25 views

Rescuing mouldy wooden furniture

Most of my furniture has been in an unheated house for 6 months (extension and rewire). Most of it has now developed mould - one of the worst affected pieces is pictured but most of it has patches ...
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Upper Floor Window Condensation Issues - HRV?

We live in a 2 level home with basement in central washington. The winters average 20-36 degrees Fahrenheit with humidity levels of 70-99%. Summers are fairly warm to hot with lower RH. Our issue is ...
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1answer
63 views

Possible mould damage from burst pipe

On 15th December 2020 we became aware of a burst pipe on the side of our house. The source of the leak was the cold water pipe leading into the hot water system on the side of the house (brick veneer)...
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17 views

How can I mouldproof a conservatory?

We bought a small conservatory a few years ago. Despite following all the available advice (minimising condensation, cleaning regularly, etc...) mould still accumulates in the corners. What can I do ...
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14 views

Mildew around window retrofit inserts

Some of the windows in our house have mildew around the replacement window inserts (~18 years old). Mostly at the bottom. The original frames were aluminum, the inserts of course are PVC. The ...
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0answers
31 views

Mold on Bathroom Ceiling

I have a popcorn ceiling in my bathroom that has a tendency to collect mold. I clean it off with bleach but it always comes back. There was no mold prior to remodeling the bathroom a few years ago, ...
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2answers
780 views

Could these white fluffy spots on the wood in my attic be be mold?

I am currently living in Vancouver area, recently I got a leak in my roof but my roofer already fixed it yesterday. After the day it was repaired I went up to our attic to check if if everything was ...
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1answer
62 views

Mold on underside of attic flooring

I found mold on the underside of my plywood attic flooring. The attic has rollout fiberglass insulation with a paper vapor barrier in the attic joists with no rafter insulation. I have installed ...
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1answer
114 views

Will showering with the fan on and bathroom door open prevent mold?

I have a room mate who loves to just sit in the shower tub with the shower raining over him. He sits in the shower for 2 hours or longer easily (not over exaggerated), just watching youtube videos. He'...
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1answer
15 views

Replacing drywall on ceiling after a small flood

A laundry washer located upstairs, right above the basement room, had a leak and flooded the basement drywall ceiling. Luckily I was in the house and could stop the leak, however it did damage couple ...
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1answer
59 views

Is this black material in my HVAC air duct mold?

I live in an apartment complex in the southeastern United States. The apartment complex is made of brick so is probably fairly old, but my apartment was renovated just before I moved in. It has ...
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1answer
114 views

Is there mold in my apartment bathroom? What is causing the unpleasant smell there?

I moved into my first apartment in August. The apartment is a 3rd floor 2 bedroom apartment and it’s great except one persistent issue that has gotten worse over the last few months. The master ...
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1answer
38 views

Condensation between chair mat and rug in basement: a concern?

We have a 1960 two story colonial with a finished basement in New England. The basement floor is wall-to-wall rug, on a rug pad, on old vinyl tiles, and then a concrete slab; I assume there's no ...
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18 views

Bathroom condensation

My bathroom is mouldy and retains condensation on walls, windows etc. The room is approx 8fx7ft x 8ft high. I’ve installed a new inline Manrose fan with timer to replace cheap old online fan, the ...
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2answers
64 views

Mold around doorknob?

Any ideas on why this one outside door may be growing what appears to be mold around the doorknob? It doesn't happen on any other outside doors (or on the inside of this door) and after painting over ...
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2answers
39 views

What vinegar acidity is necessary to effectively kill household mold?

I have 30% and 5% and I'm guessing it's somewhere in between.
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2answers
82 views

How to keep shower caulk clean

We have a tile surround shower that has a fascia covering that is attached between the bottom edge of the tile and the bathtub using tub/shower/tile caulk. The caulk is marked for use in wet locations,...
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1answer
53 views

Help to identify and remove mold on wooden-furniture

A couple of months ago I found a lot of small yellow solid dots on the shelves of the bookcase in my bedroom. As it was an old piece of furniture, so I took the chance to buy a new one. I carefully ...
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1answer
190 views

How big a problem is wood embedded in a basement concrete floor?

We purchased a home where the previous owner did a lot of home improvement himself. The house has a finished basement and I believe the previous owner mentioned something about him digging out and ...
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2answers
112 views

What is this row of sandy material in my wall?

I am enclosing an outdoor alcove 120”x 70” and notice brown residue where the studs and drywall meet together- this is on several areas of the room and walls but there does not appear to be any damage ...
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18 views

Damp exterior bricks near the roof and windows

I been looking everywhere. Some say it could be a drainage issue or mold. Would anyone know what could cause this discoloration?
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2answers
62 views

Should I put a moisture barrier between a single ply of pressure treated (PT) plywood and a second non-PT ply when constructing a shed?

I am building a shed. The floor consists of 4x4 PT runners, 2x8 PT girders, and 3/4" PT Plywood flooring. Anytime in the past, when I have laid PT lumber next to non-PT lumber, there is mold/...
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7answers
5k views

I've moved into a new apartment for a while. Is this mold? Is it safe to continue live here?

I've moved into a new apartment for a while. Lately, I found these molds on my things. Is it safe to continue living here? Do you think a dehumidifier will solve this problem? I don't want all of my ...
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2answers
53 views

Need to know if this is mold?

I’m being told this is not mold that it is just dirt. There was a leak as well as a smell to this. Would like to know if this is mold?
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1answer
63 views

Can I use dehumidifier to tackle mouldy bathroom

we had a new bathroom built as an extension about 20 years ago. It didn't have any wallpaper or anything on it for a while, just the exposed brown plaster. It was painted using water based paint a few ...
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0answers
56 views

If a dirty Merv-13 Furnace Filter is still passing air does that mean it is still catching allergens like mold spores?

I built a DIY air filter by fitting a Merv-13 air filter inside a cardboard box. It's held in place by wood strips cut and glued to the box and I cut a hole for a 200mm case fan with a 12v power ...
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2answers
68 views

Can I use an unplugged freezer as storage if I leave it open overnight? [closed]

My concern would be moisture buildup/mold. But if I leave it open overnight, maybe that would be enough to prevent mold?
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2answers
134 views

Vapor barrier on heated entertainment shed

i am building an 8x10 entertainment shed with a loft for kids to hang out and have sleepovers in, i will be heating it. I have tyvek and t1-11 it is on 4x4 skids on top of the Concrete patio and has 3/...
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1answer
123 views

How to prevent mold in ceiling below upstairs bathroom

TLDR; Had previous mold issues in kitchen ceiling due to frequent leaks from upstairs bathroom. Source of leaks resolved to the best of our ability, but long term permanent fix probably some years out....
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1answer
56 views

Raised black line in basement drywall

Does anyone know what this is? My best guesses are either some type of mold or something insect related. This is on drywall in a finished basement connected to an exterior wall. I live in Chicago, in ...
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2answers
124 views

Do I need to remove tub to fix the subfloor? [closed]

I had hired a flooring company to replace vinyl with new tiles. When they removed the underlayment, it turned out there was some mold on the subfloor near the tub (see pics). The flooring guy said ...
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2answers
140 views

When removing siding with a mildew smell, and then replacing it, should I wrap the house in something airtight first?

I have a home built in the late 1960s in Massachusetts. The prior owner covered the house with vinyl, which was not done with care. Water gets behind the vinyl. The cedar wood clapboard and trim is ...
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2answers
51 views

Is this black mold/wall damage fixable without professional help?

Renting an apartment, had a bad flood last year, restoration company came and left (and forgot about) an industrial fan for 6 weeks, afterwards they said everything should be fine. Bookcase was not ...
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1answer
18 views

Prevent *minor* leak from kitchen faucet base

I noticed a small amount of mold (or mildew) on the dry wall under my kitchen sink. I don't know how long it's been there, or how long it's taken it to get there, but I cleaned it up with some ...
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1answer
85 views

Safe & chemical free way to clean AC coils?

My ac system last had regular maintenance/inspection 9 months ago. Normally I have it done every 6 months but due to coronavirus the company I have a warranty with isn't honoring their warranty. And ...

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