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Questions tagged [crawlspace]

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0answers
22 views

How to tie interior crawlspace drain to outside discharge pipe?

I am installing an interior perimeter drain in a damp outbuilding crawl space. In the "literature" (YouTube) this kind of drain is commonly described but always with a pumped discharge (basin, pump, 1 ...
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0answers
25 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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1answer
36 views

Should I fill my crawlspace drainage trenches before putting down a moisture barrier?

I recently purchased a house by Lake Erie which has a crawlspace foundation. There are existing drainage trenches throughout it dug into the hard clay, which all drains to a sump pump. These trenches ...
4
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1answer
310 views

Is moisture a concern with solid hardwood flooring over a crawl space?

I recently purchased around 600 sq feet of 3 1/4 inch solid hickory from Bruce, which I'm installing over a crawl space. I put down a 6 mil vapor barrier in the crawl space. I'm measuring the ...
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2answers
355 views

Does Age of Home need to be considered when encapsulating crawl space?

I have had my crawl space encapsulated. It has made a big difference in the air quality inside the home (80 years old). However, I am now seeing cracks throughout my home in the walls closer to the ...
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2answers
3k views

Does wire run in conduit in a crawl space need to be rated for moisture?

Quick question for all the electricians out there. I'm in the states and looking to make a couple new electrical runs for the outside of my house. The runs will be done inside my crawl space inside ...
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0answers
51 views

Can basement plumbing rough-in be moved to a new location in the crawl space?

Thanks for any help with these Plumbing 101 questions. Before talking with a pro about bathroom updates, I want a good grasp of what might be feasible. This bathroom has water and drain coming up ...
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2answers
2k views

Geotextile Filter for French drain woven or non-woven?

I'm getting to the point of buying the material for my French drain, which is suppose to go at the foundation of my house's crawlspace. Now the question, I couldn't find a definite answer to...the ...
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1answer
121 views

Leveling the sagging side of the home

I am buying a home and one part of the home is actually visibly sagging. While looking at the crawlspace, I've noticed that some work was done to support the home. It seems like there is no new ...
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1answer
735 views

Bathroom exhaust vent into crawlspace

It is acceptable to vent a bathroom exhaust fan into a crawlspace? The crawlspace in question is uninsulated, has a dirt floor, and varies in height between 5' and 7'. The vent would enter roughly in ...
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11answers
24k views

How can I remove mice from my house?

I live in a townhome which is a 2nd and 3rd floor unit. On the 3rd floor is a closet with a crawlspace entrance which is the attic. There are definitely mice running around in there. I tried to ...
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0answers
52 views

Is CSST piping and water piping in an inaccessible crawl space against code?

The CSST line that feeds our upstairs dryer with gas, the water pipes for the washing machine and some electrical wires run through an inaccessible crawlspace in the basement. When I went to turn the ...
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1answer
615 views

Moisture on crawlspace dirt/clay floor

Our house has a damp/musty smell to it when you first enter. Once you open a window/door the smell usually dissipates. In May (Chicago-land) the humidity in the house is about 30% upstairs and 40% in ...
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1answer
92 views

What purpose does this PVC pipe in my crawlspace serve?

I was cleaning the crawlspace under the house and discovered two 3/4 inch white PVC pipes that run across the crawlspace buried under ground (4-8 inch deep) and terminate at the perimeter foundation ...
7
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1answer
439 views

Tree stump in crawlspace surrounded by boards and covered in concrete?

I had a home inspection done today and the inspector told me this was a first: In the crawlspace there was a large box filled with concrete. It looks like this: Image source The builder was there ...
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0answers
31 views

Do I need to vent a crawlspace?

We just completed a 20x20 great room addition on the side of our house with a 4 foot crawl space and poured concrete floor. There is a 4’ by 4’ cut through to access this crawl space from the existing ...
2
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1answer
133 views

Ideas for covering vents to stop pests getting in?

We have a crawl space under our house and the wire mesh covering the vents is shredded. I want to keep the animals out and would like some ideas on the best way to do it. I was planning to replace ...
2
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1answer
519 views

How can I prevent interior French Drain from further eroding soil under garage slab?

I have a home with a block wall foundation and adjacent garage (built on a slab) on the left side facing the house. The house sits on a grade with right side to left side drop of 3/4" to 1" per foot. ...
2
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1answer
32 views

Installing Vapour Barrier in Crawlspace with Water Heater

I'm installing a vapour barrier over the dirt floor in my crawlspace. There is a water heater already installed and I'm wondering if it's a good idea to tape the vapour barrier directly to the bottom ...
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2answers
301 views

Stackable washer/dryer covering crawlspace access point

Background 1940s home has a stackable washer/dryer combo unit installed over the crawl space access door. I want to replace the unit with a new combo such that: The crawl space door is readily ...
3
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1answer
51 views

Remove Foundation Concrete Block

We are having HVAC ductwork installed in our crawlspace and one of the companies mentioned they do not remove foundation concrete blocks due to liability. Unfortunately, for us to have registers in ...
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3answers
63 views

What type of crawlspace setup do I have?

New home owner here - I’m working on sealing the furnace ducts that run through our crawlspace. Previous owner used silver duct tape and not the proper mastic or UL approves aluminum tape. Long story ...
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2answers
116 views

In a crawl space how do i secure electric cables?

In a crawl space, can I staple the electric 12/2 cable to the floor joist?
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1answer
133 views

Crawlspace Insulation Upside Down Replacement

I have an upcoming project and would appreciate any input. My crawlspace in Maryland had insulation installed upside down (face paper towards ground) and is now rotted/mildewed/falling from the ...
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2answers
80 views

Powering Subpanel from CSED via Feed-Through Lugs

I'm wiring my house and would like some feedback on the sizing and routing of conductors between the exterior service entrance and an interior subpanel. On the outside, I have installed a combination ...
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1answer
184 views

Black gas pipe in unconditioned crawlspace?

My GC used black cast iron gas pipe to connect from the PGE riser to the interior of the house. He wrapped the pipe from the riser, down into the ground, and up 10" above the ground where the pipe ...
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6answers
13k views

What protection is needed to access the crawlspace under the house?

We have a crawlspace about 2 feet tall under the house. (Scary!) Looks like it has a black plastic barrier on the ground (which I believe is just dirt). How should one dress to crawl under there, and ...
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1answer
90 views

Are these studs supporting the stairs?

Planning on building a cupboard under the stairs i was going to leave this section but the plasterboard was damp (Prob from cats water bowl spilling or something). So i thought i may as well make use ...
3
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1answer
89 views

Exceptions for support when fishing crawlspace wiring

After having cut a hole in the wall to peek into the crawlspace, it seem rather feasible to relocate our 3-prong dryer receptacle to a new location by running new 4-wire cable all the way back to the ...
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0answers
299 views

Wires run through foundation vent screen

I need to replace the foundation vents in the house I recently bought. Unfortunately, AT&T, Time Warner, and others have run wires through one of the screens. I can't easily detach the wires to ...
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0answers
94 views

Sealing Off Gravity Pipe from Crawl Space

I currently have a 6" clay pipe for eliminating water from my crawlspace. The pipe exits my crawlspace about a foot from a corner wall, travels 15', and opens to air in a ditch (for now). It is ...
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0answers
31 views

How do do sump pump installation with trenching

Given the estimates i have been provided, I am going to try to do it myself. Here is what i came up with as the step by step method Dig a trench (4”x6”) along foundation. Dig a 24” sump pit for ...
5
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1answer
1k views

How far from the foundation and how deep should a French drain be?

My wife and I bought a house recently but sadley the rainy season has come and I noticed a bad smell coming from the crawlspace I went under neath and found standing water about a inch deep running ...
3
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1answer
470 views

How to eliminate odor from crawl space

I'm trying to eliminate damp odor originating from a crawl space. Here's the situation: Half of the house has a basement. The other half is a crawl space accessible from the basement through an ...
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6answers
38k views

Should I encapsulate my crawl space?

Our home was built with a dirt crawl space that is about 2' from ground to bottom of floor joist. The floors are insulated with fiberglass held up (where it hasn't fallen down) with wire rods. The AC/...
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2answers
68 views

advice on sealing crawlspace vents to outside air

My house was built in 1950, and in my crawlspace, I have vents covered with mesh wire that circulate air to the outside. I've been reading online that its now best practice to seal the vents in the ...
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1answer
718 views

Can I use a vapor barrier paint instead of polyethylene sheets to encapsulate my crawlspace?

I was looking into "encapsulating" my crawlspace by some manner or other. From what I can tell the way to do this involves (primary) some thick poly (.15 or more) along the the soil and up the walls....
2
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1answer
117 views

How good of a vapor barrier is OSB in a dirt crawlspace?

Some background - I bought my current house in the middle of a drought in 2007, and knew nothing of vapor barriers. The house has a nice, albeit uneven crawlspace, that is walkable for about half ...
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2answers
245 views

Efflorescence in crawl space

My house has a daylight basement along with some areas that is finished crawl space. Basically instead of dirt there is slab in the crawl space. I bought the house a few months ago and the crawl space ...
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2answers
136 views

should I catch mice first before fix a broken crawlspace vent cover?

Find one mesh of the crawlspace vent cover is broken. Also, home inspection found some clue of rodent. I guess if I just fix the vent cover, the mice could die in the crawlspace. And before they die,...
0
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1answer
78 views

dig out and finish my crawl space into a basement

I have a house with a continuous concrete stem wall, and a sill plate seismically bolted to the foundation. It's on a hillside, and the north (downslope) is post and pier (not continuous). There are ...
0
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1answer
64 views

Crawl space insulation

I have an older home with a cement floor crawl space. It is a cold air space and I would like to insulate and heat the area going forward. The cement floor is in good condition and is mostly covered ...
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0answers
93 views

Retrofit Foundation Posts/Beams

Bought a new (old) place and our inspector pointed out beams/posts that need framing/structural straps in the crawlspace. Ballpark estimate I got from a foundation contractor (site unseen) was a $3,...
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1answer
89 views

Necessary to insulate the ceiling of a conditioned crawlspace

I have a new home that does not have insulation in the crawlspace ceilings (the floors throughout the home are above the crawlspace). Is it necessary to insulate the ceiling to prevent heat loss in ...
2
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2answers
458 views

Vapor barrier above a frequently wet crawlspace?

How can I create a vapor barrier between my home and its crawlspace which frequently has standing rain water that must evaporate and drain? Some first floor rooms have smelled damp for years. I am ...
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0answers
87 views

How do I support a deck-style floor in crawlspace?

This question is kind of a follow-up to the one asked here: how-should-i-add-flooring-in-my-crawl-space. My crawlspace is exactly as the one described. Basically my house is on a slope and have a ...
2
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1answer
337 views

Furnace cold air return serving up crawlspace air

My house has a partial basement and a crawlspace. The forced air furnace is in the basement, and ducts run through the crawlspace to distribute air to the house. In the summer, when we don't use the ...
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0answers
461 views

Repair/replace foundation vents in wooden siding?

The vents into my crawlspace are cut into the wooden siding and I'm not what the correct way to repair/replace them is. All of the examples and products I've seen show the vents in the concrete wall ...
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1answer
243 views

Sealing crawl space vents in Pacific Northwest?

I just had a perimeter drain and sump pump installed in our crawlspace because it flooded frequently and severely during the rainy seasons. Before, I was under the impression that leaving the ...
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1answer
229 views

Installing door on crawlspace access

I'd like to install a door on the crawlspace entrance in our basement. One problem I'm running into is the radon remediation pipe is bracketed to one of the walls. Any ideas on how to frame this out? ...