For questions generally relating to habitable spaces in a home below ground level, and to foundation types that include a space of this type.

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1answer
39 views

Water heater on concrete--should I build a platform? how much heat loss in winter?

I don't know if that title the best way to phrase the question. It's winter(ish) now, and I swear the hot water just doesn't last as long as it does in, say, September. The water heater tank is ...
3
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3answers
59 views

How do I prevent water from leaking into my basement?

How do I prevent rain water from leaking directly into the basement? As you can see in the diagram below, rain water drains into small concrete cracks (near the bright red line shown below) and finds ...
1
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4answers
37 views

standalone pump options for leaky below-grade room

A friend of mine runs a martial arts studio where his concrete-floored office in the back is slightly below grade and floods every time it rains. I assume that a proper solution would presumably ...
0
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1answer
29 views

insulating rim joist

After caulking the four joints that make up a rim joint, can I put the rigid 2" XPS board close to the room (the beginning of the cavity), or does it have to be put right up against the joist. ...
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0answers
23 views

HVAC ducts ready for finished basement?

I'm starting to finish my basement. Before I do so, I want to be sure the ductwork is sufficient to keep it warm during Colorado winters. The basement was finished when we moved in, but gross, so we ...
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1answer
50 views

rigid foam board in basement with exterior guard overkill?

I'm finishing a basement and have 8 foot and half concrete walls that I will be placing a stud wall in front of. I've scoured the net only to find a large number of opinions. My basement wall has an ...
1
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1answer
36 views

Rim Joist Insulation without a Sill Plate

I've seen a few similar questions but the answers don't add up... I would like to use some rigid foam insulation to insulate my rim joists. Here is the problem: everything I have seen shows putting ...
1
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1answer
32 views

Plumbing connections for basement bathroom

My house is a bit of a strange design. Although the living room appears to be an addition to the home, it was actually built at the same time as the rest of the house. Looking at the front of the ...
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3answers
34 views

Low ceiling clearance non load-bearing door opening question

I'm finishing my basement, and am framing in a room. I have 81.5" of ceiling clearance to the ceiling joists, and am in the process of framing in a door for a bedroom. My question is, since this ...
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0answers
11 views

Repairing concrete block on inner part of basement

I have had water seepage into my basement through concrete block for many years. The exterior part of the block is covered by a deck and patio and is not easy to get to. I've mitigated a lot of the ...
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1answer
18 views

Fragile paperback on cellar ceiling batts

Installed in 1968, these insulation batts now fall, or hang. The paperback has become so fragile the insulating weight pulls it apart. What suggestions for a remedy? Replace? Or?
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1answer
45 views

Drain clogged by grout

The contractor I hired to tile my basement bathroom dumped a bunch if grout sand down the drain. it is clogged solid now that the plumbers came back to do their water test. we have been trying to get ...
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1answer
40 views

Can rigid foam board have an air space between it and rim joist?

I am insulating my rim joists with 2" rigid foam board. Most of the rim joist is bare, and the foam fits along it nicely. Some sill boxes have some small irregularities (vent pipes, plumbing, etc) ...
0
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1answer
52 views

which layer of rigid foam should i caulk when insulating rim joist?

I am insulating my rim joists with rigid foam board in a manner similar to that described on the familyhandyman's website. I am considering adding a second layer of foam board to get closer to the ...
1
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2answers
56 views

Basement supporting wall header increase

We are finally in the process of finishing our basement after a number of years. I have a load bearing wall that has a header for a doorway, however, we are looking to have a more open hallway. I ...
1
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1answer
38 views

Can I enclose my new boiler in a closet?

As part of a new residential boiler installation, two 6-inch ducts venting to the outside will be installed, one near the ceiling and one near the floor. They won't be attached to the boiler itself, ...
0
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1answer
33 views

How can I stop a water leak in my basement?

I have an unfinished basement in 40 year old home. Block walls are extremely clean and show no signs of water having come down or through them from ground outside but when it rains for a couple of ...
1
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1answer
72 views

Are portable electrical outlets permitted in a basement?

I would like to install a portable outlet box near a work area in an unfinished basement. I have seen these installed in commercial buildings and educational laboratory type areas, always dropped from ...
0
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1answer
64 views

Are uninsulated steam pipes behind walls and touching beams a fire hazard?

We are getting our unfinished basement done. We have replaced and rerouted (to make more space) our steam pipes (house built in 1937) with new pipes (Black and I believe 4 inches in diameter). These ...
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1answer
32 views

How do I dry up a stucco wall that presents efflorescence?

I have determined the source of the water and I would like to believe that I stopped that with a temporary fix (a large tarp that will cover my patio which used to collect water at the base of the ...
0
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0answers
121 views

Replacing Load-Bearing 2x4 wall with beam and posts - Basement

I would like replace a 64" section of a load bearing wall with a beam and 2 support posts. The current wall is 2x4 pressure treated sill plate on top of poured concrete, 5 2x4 vertical supports and ...
2
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3answers
79 views

What should I do about water filling the excavation for a house's foundation?

I live in Duluth, Minnesota. As stated, I am putting a new foundation on my house. When the contractor was excavating, they hit water. They are constantly pumping this water out. I now have 2 new ...
3
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3answers
66 views

Why does my basement floor paint come off when it's wet?

I painted my basement floor and now just 3 weeks later my washer leaks and the paint is peeling off. I also put some water down on a spot and when I wiped it up you can scratch the paint off. It is ...
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1answer
39 views

How to make a basement warmer? [closed]

I'm looking for some cheap way to renovate my basement and make it warmer and quiter,any ideas?
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4answers
53 views

Do I really need a redundant sump pump? [closed]

So I'm getting my dirt basement encapsulated, and the contractor is installing an interior perimeter drain and sump pit/pump. They offer either a single good quality pump, a redundant system with just ...
3
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1answer
241 views

Why do basement walls need less insulation than crawlspace walls?

I used this DoE calculator: http://web.ornl.gov/sci/roofs+walls/insulation/ins_16.html For Washington, DC, it recommended R25 for crawlspace walls and R11 for basement walls. Why would they be ...
2
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1answer
63 views

Can I use 1“ XPS and fiberglass batts instead of 2” XPS insulation in my basement?

I have read multiple sources on the internet suggesting use of 2" XPS foam boards to insulate basement foundation and then building a 2x4 wall in front of it. 2" foam board is very expensive when ...
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0answers
40 views

What can I do about a basement window well that is filling with water?

My house was built in the 1950s and I have a basement window well that was filling up with water after a hard rain. I have covers however the water would come up. After much reading online that there ...
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2answers
82 views

How can I stop my basement from filling with water?

I have my house in a sloped area ,it has problems of water seeping inside the basement area which gets filled up to 1 to 2 feet height what may be the solution for this .... i have tried all water ...
0
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0answers
57 views

Should I add an air return in my basement and seal old vents?

My question is basically a variation of two prior questions: "How do I close and seal an old external vent" and "Should I add an air return in a finished basement." My house has a bottom level that ...
1
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2answers
62 views

Where do I need to drain the footing drain when I waterproof a basement from outside

I am planning to waterproof a basement. (please see the attached picture). I would like to know if the component labeled collector on my attached picture is needed. Since my lot is virtually flat I am ...
2
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2answers
205 views

Do I need a vapor barrier in an exterior basement wall if I use purple drywall?

I purchased some purple drywall (mold and moisture resistant)for installing in a finished basement bedroom. One wall is an exterior wall. Do I need to install a vapor barrier between the drywall and ...
4
votes
3answers
106 views

What is the proper order in framing the basement walls?

I am thinking of finishing my basement and am wondering what is the proper order of things for framing the walls. Do I put up perimeter walls first with electrical, insulation and vapor barrier, and ...
1
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1answer
53 views

What should I look for in a battery backup sump pump?

I've got a pretty basic 1/3 hp sump pump that does the job quite well. However, i'm concerned about losing power and just the wrong time. Or worse the pump goes bad! What sort of features do you look ...
2
votes
2answers
310 views

Can you lay ceramic/porcelain tile over existing mastic without grinding the floor?

We had a basement flood, and consequently had to rip out the vinyl floor tiles in our basement. The tiles were not asbestos (we had them tested). But after the tiles came up we discovered that they ...
1
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0answers
117 views

Connecting a sump pump to sewer

I'm attempting to install a new sump pump in my basement after having a few minor flooding incidents and addressing as much of the external causes as possible (gutters, etc). The pump is only used for ...
1
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0answers
36 views

What are the considerations for crawlspace encapsulation barriers / humidity control?

I live in a house that's half slab, half crawlspace. The crawl is half basement. Typical crawlspace/basement humidity readings are: 80% RH @ 67°F 85% RH @ 68°F 78% RH @ 67°F Where in the ...
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0answers
37 views

Which should I do first? replacing furnace or resurfacing concrete floor?

I'm going to get two things done in my basement soon (by hiring professionals), but I'm wondering what the right order of operations is. One task is to replace the gas furnace that sits near the ...
0
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2answers
109 views

Suggestions on finishing a concrete vault

I have a newer home that the builder put a concrete vault in. It is basically the porch that was dug out fully to make a room under it with a steel security door. The concrete porch is the ceiling. ...
1
vote
1answer
76 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 ...
4
votes
5answers
302 views

How can I insulate my basement on a budget?

I have a home built in 1925, a "Chicago Bungalow" style, in Louisville, KY. I have roughed in the basement, trying to take advantage of every square inch. I am planning on using it for short-term ...
1
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4answers
625 views

How realistic is lowering a concrete floor?

So first off, I love basements, its almost like a fetish. Ook.. so this guy is selling a basement in his building and its perfect(got good water, electricity, comms, location and cheap!) except for ...
1
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0answers
82 views

frame soffit against foundation wall

I'm framing my basement and I have a duct that runs along the foundation wall. There's a little over a 1" gap between the duct and the wall, so I was planning on putting up XPS along the wall and then ...
0
votes
1answer
55 views

Glass deck above basement addition [closed]

We're planning to expand our basement underneath our deck and would ideally like to cover this section of the deck in glass as in this photo. (Posted: Wear skirts at your own risk!) Our architect ...
0
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1answer
44 views

Sewer drain cap replacement options

I have sewer cap that has lost its threads. I am wondering what options I have to replace/fix that does not involving tearing up the cement floor. Are compression fittings a good option?
2
votes
2answers
150 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, ...
2
votes
4answers
227 views

How do I mount this pullup bar?

I bought this pull up bar that is designed to go into studs that are 16" apart Ultimate Body Press My basement walls are only framed out so I can see all of the studs. I started to mount it and ...
0
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2answers
80 views

Minimizing wall thickness for basement drywall?

I'm trying to optimize acoustics of my future home theater by maximizing dimensions to minimize standing wave problems. I would like to minimize the thickness of a finished wall consisting of drywall ...
0
votes
1answer
71 views

Can I support a fiberglass tub with a layer of 1" thick foam board between a concrete subfloor and mortar base?

I'm trying to maximize the headroom in my basement shower. I originally planned on placing the tub on top of the subfloor and sleepers that make up the rest of the floor, but then I realized I can add ...
1
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1answer
54 views

Do I need to close the windows and doors in the entire house when doing a radon test?

I'm trying to perform a home radon test, the first step in the instructions for the Pro-Lab Radon Gas Detector Kit read that I need to close all the windows and doors for 12 hours before hand. Do I ...