Questions tagged [crawlspace]
The crawlspace tag has no usage guidance.
158
questions
6
votes
3answers
773 views
What is the minimum height to a crawl space, and where did you get that information?
I am working with a customer and it was a great question. I was trying to find the exact answer.
0
votes
0answers
54 views
How to knock a hole through wall in crawl space
I need to gett access to the crawl space under the floors in every room in my house so that I can fit underfloor insulation.
I'd like to fit insulation board as it seems to be the easiest to work ...
3
votes
1answer
107 views
Is it a problem that my laundry drain protrudes above ground level?
My plumber just moved the laundry's washer drain location and this is the picture from the outside:
It was re-connect to the old drain pipe and go into crawl space.
My question is: Does it look ...
2
votes
0answers
46 views
Options for sealing off basement crawlspace
The "crawlspace"
In the back left upper corner of my basement, a hole was made to enable the addition of a powder room on the main floor 15+ years ago. The basement walls are concrete and the hole ...
0
votes
1answer
35 views
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 ...
2
votes
1answer
69 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 ...
0
votes
2answers
49 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 ...
0
votes
0answers
27 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 ...
3
votes
0answers
80 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 ...
1
vote
1answer
129 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 ...
0
votes
0answers
26 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 ...
2
votes
3answers
200 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, ...
0
votes
3answers
83 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 ...
0
votes
2answers
95 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 ...
0
votes
1answer
58 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 ...
0
votes
3answers
77 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 ...
0
votes
1answer
41 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 ...
8
votes
1answer
732 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 ...
2
votes
2answers
389 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 ...
1
vote
0answers
57 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 ...
0
votes
0answers
36 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 ...
0
votes
1answer
77 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 ...
0
votes
0answers
55 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 ...
1
vote
1answer
199 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 ...
1
vote
0answers
92 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 ...
2
votes
1answer
152 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 ...
1
vote
0answers
37 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
votes
1answer
55 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 ...
0
votes
3answers
68 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 ...
1
vote
1answer
334 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 ...
2
votes
2answers
156 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 ...
0
votes
1answer
290 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 ...
0
votes
1answer
99 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
votes
1answer
99 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 ...
3
votes
1answer
96 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 ...
7
votes
1answer
548 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 ...
1
vote
0answers
481 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 ...
1
vote
2answers
124 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?
1
vote
0answers
119 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 ...
0
votes
0answers
37 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
votes
1answer
2k 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 ...
2
votes
1answer
248 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 ...
0
votes
2answers
84 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 ...
4
votes
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 ...
0
votes
2answers
348 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 ...
0
votes
1answer
97 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 ...
1
vote
1answer
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 ...
0
votes
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 ...
1
vote
0answers
118 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,...
1
vote
1answer
105 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 ...
