Questions tagged [mold]

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

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25 views

Water damage on the side of the garage + a drywall hole - approx cost to repair? [closed]

The whole garage smells moldy, and the home inspector stated that it might be from the humidity caused by the snow last year. Not sure how much it would cost to fix this problem, does anyone know?
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1answer
89 views

After being away for three months, we came home to extensive mold on the ground floor addition [closed]

We live on the water and I had mold in my new ground floor addition. It was in all the dressers/closets..everywhere. My husband had the AC set at 78 while away for 3 months and there was 95% humidity. ...
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88 views

Are these black marks on the wall from sanding?

I was told these markings on the wall are from "sanding". I believe the walls are plaster. I wasn't sure if I should believe it since it's in a strange pattern. However, it might be ...
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41 views

Blackish Stains on bedframe slats

I was in the process of disassembling my bed for an impending move, when I noticed some blackish stains on the bed slats. Wondering what they are. Is it salvageable or should I throw it out ...
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44 views

Is this termite damage? Mold damage? Something else?

I recently sold an old freestanding wine cellar and found a lot of dust and some mold underneath and behind it, plus this circular area on the baseboard, with some wood shavings below. Doesn't look ...
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2answers
1k views

Help me identify: Mold or fungus or Moss?

I live in a rental house and I see this growing on roof. What is it: is it moss mold or some fungus/algae? Should i be worried for my health? The clear line where it grows is likely because it has ...
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1answer
57 views

Fixing water-damaged, rotting frame. Who to hire?

I'm renovating my basement bathroom and feel over my head as maybe this is a bigger problem. First time home owner. What professionals should I hire to assess/fix this issue? Please be specific ...
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50 views

smell behind skirting board in basement room

I live in a house when one floor is basement. We had some damp bubbles in one of the room walls and the builders who renovated the house in 2020 came to fix. They checked the whole perimeter of the ...
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1answer
59 views

Daylight basement remodel, found mold on what appears to be drywall between exterior siding and studs. Do we need to remove ALL the siding to repair?

While working on removing paneling in the daylight basement, we discovered mold on what appears to be black papered drywall in between the exterior siding and the studs. This was pointed out during ...
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2answers
96 views

What is this dirt on the top of my high ceiling wall, how do we remove?

We just noticed there is some dirt on the wall by my foyer close to the ceiling. On the other side of this wall is a small attic space. The wall to the right, where the bar is, has a bedroom on the ...
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3answers
158 views

How can I get my building owner to deal with a mold issue?

I live in an apartment with no ventilation to the outside. The bathroom fan is ductless as is the range fan in my Kitchen. I have a mold issue in the apartment due to the lack of proper ventilation ...
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1answer
43 views

Insulating behind tar paper?

I have a home built in 1959 in Southern California with stucco exterior. I’m removing the drywall to do a major renovation and bring my wiring up to code. I noticed there is no insulation and just ...
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2answers
80 views

These odd stains for appeared in the top room of my house. They weren’t here a couple of days ago. Could they be mold? Water stains?

Blotchy stains on the ceiling. These go all around the room. [
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1answer
42 views

Black stains in wood, identifying the cause

I found a used bedroom furniture set which includes a bed frame and box spring. I've put together the bed frame but upon looking at the box springs more closely, I see there are some dark stains ...
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28 views

What is the cause of this discoloration on stucco siding?

I was wondering what this greenish discoloration is on my stucco. I think it might be water related since there’s some wood rot I’ve felt under that area (a whole other can of worms, I know). I Was ...
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30 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
901 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
94 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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1answer
76 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
95 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
61 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
27 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
67 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
44 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
170 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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2answers
39 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
173 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
72 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
330 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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27 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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0answers
29 views

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
93 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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18 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
34 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
1k 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
90 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
205 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
18 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
105 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
260 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
70 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
107 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
40 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
114 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
63 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
343 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
127 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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19 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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