Questions tagged [crawlspace]
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154
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Crawl Space Insulation in Montreal
I have the ground floor apartment in a 100 year old triplex on the plateau in Montreal. It's an 800 sq foot apartment with baseboard electric heaters and I'm currently using over 110kwH per day to ...
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1answer
63 views
2-4 inch gap between crawlspace slab (floor) and surrounding wall - Why?
about a year ago I had my crawlspace conditioned. Among other things, the company put in a concrete slab for the floor and added a sump pump in the corner.
The strange thing is, there is a 1-4 inch ...
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2answers
45 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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24 views
How can I provide effective access to a subdivided space below a non-structural floor?
One problem faced when finished spaces are built atop concrete slab floors (whether slab-on-grade/slab-as-basement-floor, or a suspended reinforced concrete structural slab floor) is "where do the ...
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71 views
Widening the stone entrance into a crawlspace
I've got a 200 year old house with a crawl space under one corner of the house. The entrance to that crawl space is very tight (pictured below), and I am a large man. I want to expand the entrance to ...
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94 views
Mold in inaccessible crawlspace
I bought a 1927 house last year and, afterwards learned I'm especially sensitive to mold and this house has plenty of it. I've eliminated mold everywhere I've found it except in the inaccessible ...
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24 views
Another Crawl Space Encapsulation Question
I recently encapsulated the crawl space under a 12'x14' "sun room" addition to our home. We are in SE Ohio. The room was initially built as a 3 season room, not heated or cooled and had jalousie ...
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3answers
167 views
Is it a concern that 120v cables hang down from the ceiling in my crawl space?
Recently went in my crawlspace to fix some plumbing issues and noticed that all the electrical seems to be just hanging, with some on the ground. I'm fairly certain that this is nowhere close to code, ...
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77 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
87 views
Crawlspace encapsulation
This past weekend I recently had to fix the flooring of my family cottage. In a heavy-traffic side entryway, the plyboard floor was bending when you walked over it.
We opened up the floor to see ...
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1answer
48 views
Encapsulating a cottage crawlspace built on bedrock
I own a 3 season cottage that is built on concrete posts that are embedded into the bedrock. I would like to use the cottage in winter and I was thinking that encapsulating the crawlspace under the ...
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71 views
Crawlspace Post to beam lumber grade
Recently we replaced some of the rotten and cracked true size 4 in x 6 in. posts under the house in crawlspace. The old posts were resting on concrete pads 24 in. x 24 in. and supporting a true size ...
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37 views
AC unit dripping onto crawl space vapor barrier
I just bought a house whose crawlspace looks like it was partially converted to being sealed off. Basically, they put down a vapor barrier and closed off the vents, but didn't finish the job. On top ...
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1answer
695 views
GFCI tripping on overload?
We called out the contractor who did our crawlspace encapsulation because the GFCI receptacle that serves the crawlspace loads (dehumidifier, sump pump, and two humidistat controlled fans) trips ...
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2answers
245 views
Can porcelain tile planks be installed in a crawl space house?
My home is a single story, about 1200 square feet, and is built on a crawl space foundation with a plywood sub-floor. The people we bought the house from had flipped the home after a foreclosure, and ...
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44 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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34 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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58 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 ...
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52 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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181 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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77 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
138 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 ...
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35 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 ...
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1answer
48 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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3answers
67 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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1answer
281 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
141 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
275 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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1answer
95 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 ...
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1answer
86 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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1answer
94 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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1answer
515 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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440 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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2answers
120 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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114 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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33 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 ...
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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 ...
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1answer
206 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 ...
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2answers
82 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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2answers
5k 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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2answers
311 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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92 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 ...
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1k 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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1answer
69 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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114 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
104 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 ...
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votes
2answers
610 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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165 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 ...
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votes
1answer
420 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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1answer
158 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 ...
