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20
votes
9answers
68k views

I have a basement floor with lots of moisture, can I paint or seal it to make it waterproof?

My basement has a slight dampness issue, where if I leave things on the floor they will get wet. There are no leaks and no standing water, the moisture seems to be wicking up through the concrete. I ...
18
votes
5answers
130k views

What humidity should I set my dehumidifier to?

I just bought a 50 pint dehumidifier for my basement. What humidity level should I aim for? This time of year the outside humidity is very high (over 80%) and we do not have central air. Right now ...
11
votes
1answer
209 views

How to make a house that tolerates condensation

Where I live, it's humid outside all fall, winter, and spring, and hovers around 45 deg F. Combined with indoor cooking, showering, etc., we always get a lot condensation on our windows. Rot & ...
11
votes
1answer
581 views

What are our options for carpeting the basement of a split-level house?

The basement level of our house (1/2 below grade) is currently just vinyl tile on concrete slab. It's cold during the winter, so we would like to carpet it. We do not get water penetration through ...
8
votes
2answers
282 views

How can I remove a moisture mark from a wooden table?

I have a white mark on my wooden dining table that was caused by a potted plant sitting there for too long without a saucer. Attempts to clean it off have been futile because it seems not to be a ...
7
votes
2answers
2k views

Solutions for a moist basement?

I live close to the water and there is a high water table around my house. Therefore a lot of water vapor passes through the basement walls. I would like to be able to store stuff in my basement and ...
7
votes
2answers
470 views

What are these vents in the foundation mortar for?

Throughout the interior side of my 1925 brick foundation are little metal vents embedded in the mortar at irregular intervals. Neither our home inspector nor our real estate agent knew exactly what ...
6
votes
2answers
399 views

How do I drywall over a partial cement wall?

I have 9' walls and the bottom foot or so is cement on one wall. What's the best method to drywall over this wall so no moisture seeps in? As you can see, there was moisture seeping in down at the ...
5
votes
3answers
693 views

What type of primer should be used on moisture resistant drywall?

What type of primer should I use my basement bathroom walls? New moisture resistant drywall has been installed, taped and sanded, and is now ready to be primed.
5
votes
2answers
4k views

What can I do about mild water/moisture damage to laminate wooden flooring?

Yesterday, I accidentally left the window open while it was raining heavily. Some rain poured in for a while (maybe a half-hour or so) before I noticed. After I had wiped off the floor, some dark ...
5
votes
2answers
3k views

What type of subflooring should I use for a basement?

My basement has wall-to-wall carpet in the two bedrooms and living area. The carpet was probably from the 70's when the house was built and we decided to remove it. After removing the carpet from ...
5
votes
1answer
589 views

How do I mitigate moisture problems when putting up drywall over stucco with torn tar paper?

I'd like to finish my 56-year old garage with drywall but I have concerns about moisture. The wall construction looks like stucco over tar paper with metal wire support, then the frame. My main ...
4
votes
2answers
140 views

How to get rid of moisture in hardwood flooring?

We have recently come to a halt with our building due to our hardwood floorboards cupping and swelling in several places.(Boards were acclimatized for several months before installation) They were ...
4
votes
2answers
1k views

Is it OK to block off an unused root cellar to mitigate moisture problems?

I have a root/cold cellar underneath my front porch. The walls appear to be poured concrete as I can't see any bricks or cinder blocks. The room sweats like crazy so there is an obvious moisture ...
4
votes
3answers
1k views

How should I insulate a room built into a metal barn?

I'm building a room into our (existing) barn; how should I best go about insulating it? The barn is a Morton building -- pole barn construction, metal siding. It's closed on three sides but open on ...
3
votes
3answers
2k views

What actions can I take to reduce moisture on basement floor?

In one corner of my basement, after a few heavy rains, I see a darkening of the concrete floor. To touch, the concrete feels damp-ish. I say damp-ish, because when I pull my hand away, I don't see ...
3
votes
2answers
581 views

Can I build a dry room in a moist garage?

I have a garage that lies in sloped terrain with the back wall almost fully below ground level. The garage is very moist, probably because of water seeping through the walls and floor. I would like ...
3
votes
2answers
601 views

Will this moisture problem persist after drywall is installed?

we remodeled a trailer home recently, removed the aluminum siding, put up osb in place of the siding, then used the Lowes brand of house wrap. we installed new vinyl siding over that without using any ...
3
votes
2answers
3k views

Vinyl tile installation over a concrete basement floor with moisture

I would like to put some sort of flooring over part of my basement. Something with the look and simple installation of an interlocking garage tile (example) would fit the bill -- this isn't a living ...
3
votes
1answer
236 views

Do shower water supply line covers need to be sealed or caulked?

I don't know what the proper name of the cover is that hides the hole that the water supply line comes through the wall, but does it need to be sealed to prevent moisture and steam from getting in to ...
3
votes
1answer
456 views

What should I do about paint flaking away from an area with moisture in the wall?

We have a very old cottage (built in 1650) that we have just completely refurbished from top to bottom. Because it is stone & brick and had a major problem with damp when we first purchased it, we ...
3
votes
1answer
2k views

Is it OK for air conditioning condensation to drip right next to the house?

Our house has a 3/4" PVC pipe coming out the side which drains condensation from the central air conditioning. It drips at what seems like a normal rate. Taking a wild guess, I'd say a gallon per day. ...
3
votes
2answers
2k views

How do I stop water from seeping between my porch roof and house siding?

I have a small roof over my side door on my porch. Whenever it rains or snows, some water always seeps in between the small roof and the vinyl siding. It drips down the siding and makes a puddle on ...
3
votes
1answer
190 views

How do you repair weep hole flashing in a brick veneer?

I have a 1950's home with a brick veneer and a crawlspace. The flashing that routes water from behind the veneer to the weep holes has broken in spots over time due to the weight of the trash mortar ...
3
votes
0answers
382 views

small black flying insect/bug in the house all of a sudden [closed]

it has been raining like crazy recently in my area (Maryland) for the last month and a half. I noticed that i'm seeing a lot of small flying insects (the kind that is seen on a extremely ripe banana) ...
2
votes
4answers
3k views

Can a portable air conditioner be used to reduce moisture in a room?

I live in a flat in an older house and I have the disadvantage of living next to an outer wall. In autums/springs there is a period when the central heating isn't turned on yet, but it's already ...
2
votes
3answers
483 views

What can I do to solve the moisture problem in my bathroom?

My bathroom walls are done in concrete not drywall. I installed a ceiling fan. After showering, the walls are covered with moisture. What can I do to eliminate the moisture?
2
votes
1answer
1k views

Should I install vapor barrier in my basement bathroom?

I have a brick house built in the 1920s. I'm installing a bathroom basement based on an existing layout, but I'm trying to keep the "wet" side (mechanical room with hot water heater, etc.) physically ...
2
votes
3answers
2k views

How can I fix a small slightly damp area in my basement wall?

I am in the process of converting a bedroom in our walkout basement, into an office. Back in 1999, the previous owner had finished the basement. The basement foundation walls are hollow cinder ...
2
votes
2answers
949 views

Is occasional puddling of water in an unfinished basement a problem that needs to be addressed?

In a early 20th century New England home of wood frame construction and foundation of fieldstone and brick with some CMU, we get some puddling of water in a few areas of the unfinished basement floor ...
2
votes
2answers
138 views

Is there a way to reduce the moisture content in wood in a short period of time?

I've purchased some timber from a local builders merchant in which I'm going to built a desk with. I've already done this once, and experienced wood shrinkage due to the moisture content being too ...
2
votes
2answers
1k views

Bowed laminate flooring on slab: How to proceed?

I recently bought a house with laminate flooring in a partially-below-grade room that sits on a concrete slab. The owners ripped out carpeting in the room and installed the laminate prior to putting ...
2
votes
1answer
803 views

Seal basement floor before tiling

My basement is prone to getting water in it after big rains. I know that we definitely have a leak in the wall on one side of the basement so we're having a contractor come in and demo the whole ...
2
votes
1answer
493 views

How do I install electrical through “new work” stucco?

See also How do I install electrical through stucco which deals with the old work situation. What are the best practice products and procedures for installing an exterior light, on a wall that will ...
2
votes
1answer
716 views

How can I fix this moisture problem to stop mold growing?

Background and The Problem I am trying to solve the problem of mold growing on my bedroom ceiling. The house is a California Bulgalow built in about 1940. The house is single-brick with plaster ...
2
votes
1answer
651 views

Can furring strips be installed diretly to a cinderblock wall not in a basement?

I've tried finding a definitive answer but it's far more common for folks to have block walls in basements that need to be furred out, so the information deals primarily with that and I believe this ...
1
vote
2answers
3k views

Will I trap moisture in the concrete of basement walls and floors if I seal them with epoxy?

I'm thinking about painting my basement's walls with some concrete sealer (before finishing the basement) and floor with epoxy paint. Many people are doing that, but I'm concerned about moisture in ...
1
vote
4answers
11k views

Do I need a moisture barrier between my bedroom and attic?

This is related to my other question about moisture barriers. There is an attic above the bedroom and there is insulation with paper backing in place. The attic area seems far more likely to get ...
1
vote
3answers
160 views

What makes water condense on the interior of the windows at night when it's cold? [duplicate]

While staying with some relatives, I noticed that all their windows experience terrible interior condensation at night and am wondering about what they can do to prevent it. The house is kept to 70 ...
1
vote
2answers
437 views

How to find and fix a bad smell of moisture?

We just bought a 3-year old house and there is an odd smell of moisture in the master bedroom and attached bathroom. It smells like someone just took a shower although the house has not been used in ...
1
vote
1answer
708 views

Will installing an OSB floor in the attic create moisture problems?

I installed some new OSB flooring in my attic. The area it covers is about 160 sq. ft. The total area of the attic is about 750 sq. ft. There is just blown fiberglass up there, and there is no vapor ...
1
vote
2answers
161 views

How do I know whether or not I've killed the mold?

I had some mold on the ceiling of my bathroom. I scraped it off with a sponge. The thick black mold has gone, but there are still fainter grey stains all over the ceiling which won't come off, even ...
1
vote
1answer
32 views

Do I need vapor barrier to insulate a cinder block garage?

Similar to How to properly insulate a garage? and Do I need a vapor barrier between the insulation and finish wall in a new garage? both of which do not have answers pertitent to my one particular ...
1
vote
1answer
291 views

Can you remove a tin roof and install insulation and re-attach the tin roof?

Hello from Hobart Tasmania. I have purchased 1930's weatherboard cottage with a tin roof. The roof is insulated in the main part of the house (i.e., in the attic) but the additions on the house are ...
1
vote
1answer
415 views

Can I repair the warping in this laminate flooring

So, this post is going to make me look like an idiot, but I'm okay with that. About 4 months ago, we bought 800 sq ft of laminate flooring (12mm w/backing). I stored the flooring in my garage, ...
1
vote
1answer
501 views

Can I use plastic as moisture barrier under fiber cement siding?

I want to attach fiber cement siding planks to furring strips over concrete wall. My understanding is that I need some moisture barrier to prevent water from getting to the wood. So can I staple 6mil ...
1
vote
1answer
41 views

Rapid changes in humidity levels in basement suite?

I live in the basement suite of a house in Vancouver. I've noticed something strange when running my dehumidifier in my bedroom: when I turn it on, the humidity is at 80%(!); after running for 30 ...
1
vote
1answer
39 views

Vapor and moisture barrier for “above ground” basement

I'm finishing the basement of my home in New Jersey, and I'm a bit confused about the general guidance for basement moisture and vapor barriers. My "basement" is built from concrete block. However, ...
1
vote
2answers
49 views

Damp smell in basement

I have a gap between outside wall and pavement. Could this be the reason for damp smell in the cellar? If I poured bitumin down said gap, would this help prevent the dampness?
0
votes
2answers
7k views

Should I install a moisture barrier behind drywall in house with T1-11 siding?

My home interior walls are thick redwood paneling in the bay area mountains. i'm about to start removing the wood in my second bedroom and want to install a moisture barrier on the 1 outside wall of ...