Questions tagged [moisture]

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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
51 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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17 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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1answer
22 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
62 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
52 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
135 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
47 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. In my ...
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1answer
31 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
68 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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15 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
41 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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82 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
46 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
204 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
90 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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9 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
26 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
79 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
48 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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1answer
35 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
57 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
59 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
35 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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26 views

Moisture Control/Ventilation with Cathedral style Roof

I'm in New Zealand, I have recently bought a house with a Cathedral style roof, that in the morning gets a log of Condensation on the Windows etc. Once the day gets going, the house does catch the sun ...
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1answer
78 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
46 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
34 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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35 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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31 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 ...
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1answer
72 views

How can I keep a hanging cloth hydrated?

As the summers are approaching, it kinda gets hot in my room. I make it cooler by dipping a bed-sheet in water and then hanging it on the curtain rod next to the window. This cools down the air that ...
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1answer
61 views

Replacing sheetrock with greenboard after remodel [closed]

I'm remodeling a kitchen which will have tile extended to the ceiling behind the counters. Currently there is relatively new sheetrock installed where the counters will go. However there is ...
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1answer
133 views

Should I frame out my foundation walls before or after I install the subfloor?

I'm about to start on finishing our basement and I'm going to put down a subfloor of DMX AG along with 5/8" T&G OSB. Should I frame out my perimeter foundation walls before the subfloor or after? ...
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3answers
87 views

Redoing insulation in the basement of the home I recently purchased

I recently purchased a home and have begun to do renovations on the basement. I am starting to look at insulation and so I have been researching what the best way would be to do that. The problem I am ...
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39 views

Damp/Wet Corners with Mold in House

In the outer corners along the external walls of our house, and inside closets on external walls we are experiencing water and moisture gathering on the flooring and there is mold appearing on the ...
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1answer
36 views

Wall putty and moisture accumulation

I recently patched a few anchor holes in the wall that were about 9mm in diameter with wall putty. It seems natural that some of the moisture goes into the wall interior when it dries. Could ...
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0answers
98 views

Basement room + concrete foundation + drywall + moisture question

Basement + concrete foundation + drywall / moisture question: just got drywall glued to a small portion of concrete foundation in an unfinished basement room: Should I have contractor remove these ...
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3answers
129 views

ventilating mildew-prone walk-in shower

I have a walk-in shower, roughly 2-1/2 x 5 ft, 7ft high, with a shower-curtained opening. The mildew problem on the grout is pretty bad. I've seen some good articles here on controlling mildew, but ...
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35 views

Ways to dry out space in wall or ceiling

I am installing recessed lighting into our living room. The ceiling of the room is topped with a flat roof. At one point, there were a handful of leaks in this roof that have since been repaired. ...
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1answer
49 views

Installing insulation board in basement to control moisture

I just had a basement waterproofing job done and it is doing an awesome job relieving pressure and keeping the basement flood-free (we just had a very large amount of rain here in central PA and it ...
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0answers
18 views

Flex shield moist protection against fungus?

Contractors are currently replacing a wooden floor which had been bowing, and repainting a wall. Both were damaged as a result of a leaking air conditioning pipe in the wall. I’ve expressed a ...
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1answer
3k views

Water leaking from concrete slab porch into rooms below. How do I stop the leaks?

My front porch is concrete and is above a portion of my garage, laundry room, and a basement bathroom. The house is in Zone 6b: -5 to 0 F. The rooms are not finished and I am not sure of the ...
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389 views

Water/ moisture coming through patched concrete hole in basement floor

We had our walls braced last summer and the basement guys had to drill holes in the floor to push the walls back in to place. They patched up the holes with concrete and I've noticed a few times (...
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3answers
695 views

How to correct burying cement board into shower pan concrete?

I made the big mistake of burying my cement board (Hardiebacker) into the concrete of my shower pan. I now understand the risks with water wicking up into my concrete boards, and causing a moisture/...
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1answer
45 views

What moisture content of wood is desirable for building an open veranda?

My family is planning on building an open veranda in Europe in a climate with the average annual percentage of relative humidity of 76.0% and the standard deviation of 8.5%. The framing will be done ...
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1answer
48 views

How can I determine whether I have moisture issues behind a brick facade

I removed a wall panel next to the window in my garage and removed the wall insulation to expose a particle board (think that's the right term) panel that's behind the exterior brick facade. The ...
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1answer
583 views

Dehumidifying an unheated garage

I have a small, 40 year old garage in the backyard of the block of apartments where I live, which I've turned into a workshop. I replaced the roof, and repaired and strengthened the back wall, filled ...
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1answer
95 views

Bathroom light and fan combo safety and wiriing

I am putting a new bathroom light and fan combo in my bathroom. I already have a light above the mirror of the bathroom that provides light for the rest of the area. However the fan/light combo I ...
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2answers
1k views

How to fix condensation between layers of insulation in unfinished wall?

An above grade portion (wood framing) of my basement walls (in unfinished furnace room) is currently insulated with faced R19 fiberglass batts. I live in nothern climate zone 5. Unfortunately there ...