Questions tagged [moisture]

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50 views

Unfinished basement - options for exposed concrete wall in finished room

We're purchasing a home with a large, unfinished basement having a poured concrete foundation and walls. This home is in Minnesota, so there's a seasonal consideration with temperature and moisture. ...
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2answers
14 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
40 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
33 views

garage walls wet

HI, I am purchasing a home and noticed some spots in the garage walls? Not sure if its moisture or a leak since its on the same place on both sides. Any advise will be greatly appreciated.
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1answer
108 views

Why are my outlet and switch plates bowing away from the wall?

The home is new construction on the beach front in Galveston. The wall is 12' high by 52' long. From the outside in, it is Hardie lap siding, house wrap, 5/8 plywood, 3" closed cell foam, 5/8&...
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3answers
48 views

Mold growth in home

My home is a mold catastrophe. My fiancé was sick for a year and we got an air quality test and it tested the highest level. I started ripping the house apart and found that there was mold in three ...
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0answers
47 views

Do I need to let my basement subfloor breathe?

I live in a mostly cold environment and I’m planning to finish my basement floor with standard interlocking foam tiles (with a slight rigid texture) for underlayment (soft/insulated) topped with roll-...
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1answer
53 views

How to paint a small bathroom with very poor ventilation?

Amateur here, just trying to do his best. How to paint a small bathroom with very poor ventilation? I imagine I'd want a paint that seals the paint behind it (which has been prone to a little mold), ...
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1answer
39 views

Should feather-edge lap siding be installed directly on sheathing or on furring strips?

I'm building a shed this summer. The plan is to use a stud frame construction. Cover it in 12mm OSB3 and a breather membrane to keep the interior dry and use feather edge as the cladding. The thing I ...
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0answers
35 views

Possible moisture issue with partial insulation of unheated garage

I live in a zone 5 area in Ohio in a house build in the 60s. The garage is 20x20, attached to the house on two sides and shares a roof with the house. Current garage isn't insulated - the attic has ...
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0answers
28 views

Replacing moldy drywall

We recently purchased a lake house and found moldy framing and drywall. The removed drywall had a black backing on it, similar to felt paper. This part of the wall is sub-grade with wood (gc 2x6’s) ...
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1answer
41 views

Who to contact to identify source of and address excessive humidity in house?

My house, a 1947 cape in Massachusetts, is always much more humid that outside, in all seasons. Even when running the dehumidifier, one in the basement, and one on each of the two main levels, it ...
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4answers
73 views

Store Refrigerator, Keeps Doors Open How Often

I plan to store refrigerator in my residence unplugged. I cleaned it well with all soap, 409 and disinfectant, and left doors open to dry out for few days. They recommend to keep Doors Open for long ...
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3answers
77 views

Why do unused Refrigerator Appliances Grow Mold, while unused Cabinets and electronics don't?

I have a refrigerator that I thoroughly cleaned out and washed with soap/baking soda, and let thoroughly dry. They always recommend to keep Doors Open for long term refrigerator storage. This prevents ...
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2answers
36 views

Ceiling fan/light in bathroom shortcuts when humid

I have a ceiling fan/light combo in my bathroom ceiling. It's hooked up with those white connectors you see on this picture: When someone takes long showers, especially at night when the temperature ...
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2answers
68 views

Rigid board installed after framing in Interior Basement Walls - Should I be concerned about trapped moisture?

I am helping my brother-in-law finish his basement. I noticed the framing was done first then the insulation was added after. It looks like rigid foam board was pressed up against the concrete wall ...
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5answers
3k views

Will it cause problems to shower without the exhaust fan and only turn it on afterwards?

If the exhaust fan was not turned on until after the shower is complete (say, 30 min. after the water is first turned on), is that enough to cause mold/mildew/paint issues? The mirror is foggy during ...
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1answer
50 views

Why is there moisture on some parts of my basement slab?

In the mechanical room of a new construction house there is some moisture at the bottom pressure treated plated. When I remove the vapor barrier and the insulation and check up against the concrete ...
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2answers
109 views

Since moving into a new house we are constantly ill including both my dogs. Is this house the cause?

We moved into a brand new council house just under 2 years ago in the UK and since then we have had nothing but problems with our health. I am disabled so already had health issues but they have ...
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0answers
52 views

Basement ceiling

I'm finishing my 50 year old basement and need advice regarding the 6'x4' ceiling area (which is actually a cement slab from the front porch). It drops down 2" lower than the rest of the ceiling. The ...
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0answers
33 views

Any benefit to air sealing fixture boxes in cathedral ceiling? If so, ideal method?

New house. We have a cathedral ceiling. Foam vent baffles from eave to ridge, r-38 fiberglass (unfaced), sheetrock. Most of the lights in the ceiling are LED puck lights that have a built in gasket ...
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1answer
70 views

Insulating Basement

Our unfinished basement has hollow cinderblock walls and I am wanting to insulate it and drywall the basement. Our house sits on a slope so the font of the house, including the basement, is ground ...
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0answers
22 views

Outside Sauna Build Moisture control any suggestions?

I am currently building an Octagon sauna that will double as a mobile bug out shelter that will be mounted on a trailer. I'm putting the octagon on edge if you can imagine so that when viewed from ...
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2answers
45 views

Exterior Wall - Stacking Fiberglass insulation and Mineral Wool insulation

I am in the process of finishing my unfinished basement and had a question about stacking insulation. When framing the basement we realized we have alot of areas which have about 6~ inches of extra ...
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1answer
68 views

Mid project finishing basement: should I rip out new framing?

I am learning that the wood framing that has just been installed (glued) in my basement really should have come after putting in continuous foam board insulation against the wall, separating the wood ...
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2answers
59 views

Do I need to do some drying before filling a small gap in the bathroom caulking?

I discovered a small gap in the caulking between the floor and the bathtub. The gap is an inch or two long -- but it's right where the water sprays at the edge, when someone takes a shower, and a ...
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2answers
305 views

Raising a sunken living room floor and concerned about moisture under new raised floor

I am raising a sunken living room floor but have some concerns about possible moisture problems under this raised floor. Here is what I have. A 1979 typical ranch style. It is roughly a 16 x 20 ...
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2answers
59 views

What should I do with the airflow in a sealed off conditioned crawlspace

First and foremost thanks ahead of time for everyone's help :) I am in the process of finishing my basement and had some questions/concerns about "what to do with the air" in my crawlspace. ...
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1answer
37 views

How to remove/prevent mold from forming in bathroom

I just bought a rental property and one of the tenants bathrooms seems to have a mold issue. In the shower, around the toilet, and around the perimeter of the room there seems to be mold/dirt build up....
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1answer
105 views

Do I need so many fasteners and an edge gap for a basement subfloor on concrete?

I'm getting ready to install subflooring in a residential basement, which currently has exposed concrete slab. The concrete is well-cured (50 years) with no moisture problems. The plan is to lay down ...
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0answers
18 views

placing a tile on an old plank floor

The subfloor in my home is 4" planks. The previous owner removed the hardwood, painted the flooring and left it that way (I have no idea why you would do that). Regardless I want to put down tile. ...
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2answers
70 views

What could cause a wet soil / moisture smell on concrete slab

I have a wet soil smell coming from the living room concrete slab. I had to remove all the tile in the leaving room. A remediation company came, they removed the drywall and dehumidified the place, ...
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0answers
88 views

Mystery of the wet internal door

I have a mystery and would like help solving it. I have an old original Victorian door in my house that gets a wet patch on it. It’s permanently wet / damp in the same area, although sometimes the ...
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1answer
56 views

Spray foam insulation against metal roofing

The context of this question is new construction for a small (28' x 32') outbuilding that will be used for commercial purposes. All work will be permitted and inspected (governed by these codes). I am ...
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2answers
359 views

Remove plywood floor before insulating attic?

My 1940 house's upstairs ceiling is composed of: 1/2" of plaster 1/2" of solid paper backing 2x6" joists spaced 16" apart (2" rolled batt and 4" open-faced batt insulation) 1/2 inch plywood Open ...
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4answers
4k views

Moisture leaking out of chip in floor tile

I dropped something heavy and mildly pointed onto the bathroom floor. The Bathroom is tiled with ~30cm square black "slate like" tiles, but where I dropped this thing, the surface has been badly (2-3 ...
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3answers
93 views

What could be the sources of humidity that build up in a house in an arid environment? Outside RH: 10%; Inside RH: 40% +

We open our window at night at the temps get down to 70F @20% RH. The temp in the house drops to 75F and the RH is 33%. We close our windows when we go to work. When mid day comes, outside, the ...
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0answers
11 views

Is it OK to install insulation, with a vapor barrier, before a moisture barrier is applied to a home's OSB sheathing?

Is it acceptable to install insulation, with a vapor barrier, before a moisture barrier is applied to a house's OSB sheathing?
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1answer
27 views

Fireplace/brick foundation

I'm rebuilding my garage and have planned to install a footer, full brick base, and full brick wall behind a wood burning stove. I'm planning to have the "base" be mostly standard concrete block with ...
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3answers
94 views

What's the best way to keep humidity down in crawl space?

I have a nominally dry crawl space that is around 22' square and about 4' tall with a concrete floor. It has no indication of leaks and is dry, but too moist during the hot Maryland summers to keep ...
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2answers
50 views

Would an opening to the outside help me dry out a basement?

I had a hot tub problem which resulted in huge amounts of water gushing out into the yard. This happened a couple of times. (Hot tub repair company from hell.) The hot tub is situated a few feet ...
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2answers
51 views

Water around furnace: culprit?

Problem: After heavy rain, water pools around our basement furnace. After climbing onto the roof, I found a mysterious (plumbing?) vent. This post seemed relevant, but 0.5 gallons comes in after a ...
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1answer
60 views

How can I determine if moisture in a basement is due to condenstation vs intrusion through walls?

I have a 1902 house built upon a limestone foundation, and I am interesting in finishing a portion of the basement to build a home office. Before I build anything though, I want to make sure I do it ...
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1answer
61 views

Can the vapor barrier between a dry floating concrete slab and linoleum flooring be foregone?

I have a two year old house that sits on an 8" concrete floating slab. The slab is insulated below and around the side. The floors in the house are unfinished. That is, the concrete slab is ...
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0answers
37 views

Reducing moisture from semi-finished basement concrete floor

I'm looking for advice for a good way to reduce moisture seepage through my basement concrete floor. My research has turned up several promising approaches: Surface-only treatments Specialty paints ...
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1answer
95 views

Do I need to replace this sub floor after bad tub installation?

I bought this house ~6 months ago and I noticed then that the caulk around this tub was not installed properly. I just barely got around to opening it up and seeing what was underneath and I found ...
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2answers
51 views

Basement moisture on foundation issues

After taking all sheet-rock down I noticed that all walls (cement block) siting under ground are moist. Some of them even ate through footers. After farther look at the house I found out that their is ...
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1answer
35 views

How to permanently remove moisture on concrete kitchen floor

We are currently renovating our kitchen and when we removed our vinyl flooring we noticed lot of moisture. We want to put self adhesive vinyl tiles but wanted to avoid the scenario of moisture ...
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0answers
39 views

Vapor barrier for crawl space

We have a home at Oak Island NC. Our home was built in the 70's. There were no mildew or mold problem until we had plastic put in our crawl space. After a few years we now have the mold problem so we ...
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0answers
32 views

Unfinished basement in Georgia townhome; would vapor barrier on interior trap moisture?

I have a town house that is a middle unit on a slab. The back wall is above grade, with exterior windows and door. The sidewalls abut adjacent units, so there is no wall in contact with soil for the ...