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

learn more… | top users | synonyms

6
votes
4answers
3k views

There is water in my basement and the outdoor sump pump failed. What am I doing wrong?

My house has water problems with the basement. Here's what the entrance to my basement looks like. When I get a really heavy rain storm, water manages to rise up and start seeping in under the door. ...
6
votes
3answers
16k views

How to finish room with protruding concrete ledge/foundation?

I am finishing a basement room and have a concrete ledge which is part of the foundation. It protrudes into the room about 2.5 inches and is about 6 inches high. This ledge is the result of a ...
6
votes
3answers
16k views

What is the best way to fill a hole in a concrete basement floor?

My basement floor has a hole cut where the water line enters the house. This hole is around 2ft square, and digging down a little I hit dirt and small roots. I'd like to seal this hole as I believe it ...
6
votes
3answers
10k views

How do I level a basement floor but not the slab underneath?

I'd like to install laminate floor on top of Delta FL in my basement. The basement slab is not level, it slopes (from all directions) towards a floor drain (that, via a pipe, leads to a sump pump) ...
6
votes
2answers
6k views

Buying a House On Underground Spring. What to do?

My fiancé and I are under contract on a new home which we are concerned it might be built on an underground spring. There are two sump pumps in the house, on opposite corners of the house. Both times ...
6
votes
1answer
4k views

What thickness of closed cell spray foam should I use on my basement walls?

I'm finishing my basement in southeastern Wisconsin. This is a poured full basement below grade. We are ready to insulate the walls and are going to use closed cell spray foam. I've had two ...
6
votes
2answers
4k views

Was this basement window installed properly?

Here's a few photos of a window that I installed last year. I used the mixed knowledge of a few different online articles and did it to my best ability, but I'm kinda worried that it may have been ...
6
votes
5answers
4k views

How can I insulate a basement wall that has 1x1 framing installed on it?

It is freezing in my basement so I decided to re-insulate my daughter's bedroom. I removed the old paneling walls to find that it wasn't insulated! There was a water barrier and a heat shield. My ...
6
votes
2answers
7k views

What should I consider when cutting/making window in concrete foundation?

I am thinking about putting in another window for my basement apartment. I would like to know what do I need to consider before trying to find a contractor to do this. I have uploaded a picture of ...
6
votes
1answer
432 views

Should window well for basement window be attached to the house?

When answering this question, code references are great (IIRC) if there are any applicable, but I am asking specific to northern midwestern climates in the United States (up near Canada) and best ...
6
votes
1answer
207 views

Small geyser coming out of the basement floor

My house is 40 years old. I have had basement flooding issues for years. With heavy rain, water comes out of my floors. I have a sump pump that takes care of it. Despite knowing better, Ive been able ...
5
votes
9answers
29k views

How should I add lighting to a low ceiling basement?

I have a basement ceiling that's around 6'6" high and currently the lights are standard bulb outlets that are attached to the beams so they sit down at eye level in the room. This means when you're ...
5
votes
4answers
1k views

Adding insulation to basement that already has vapor barrier

I have leftover insulation from doing my basement, little bits and pieces. In between the joists on my basement ceiling it is insulated with vapour barrier already from when the house was built. ...
5
votes
2answers
682 views

Support Beam Splitting

I bought an older house (1917) that had renovations done in 2009. I was in the basement earlier today with the oil delivery man and I noticed some of the support beams splitting. The inspector never ...
5
votes
4answers
3k views

Will running a dehumidifier near new concrete cause it to cure poorly?

I have a new house with high humidity in the basement. Will running a dehumidifier constantly cause the new concrete to cure poorly?
5
votes
3answers
2k views

What equipment could I use for digging out a basement after the house is built?

My mother and father built the home I live in many years ago. It only had a half basement. My father had started on the other side, but passed away before finishing it. I have now taken this job on. I ...
5
votes
2answers
4k views

How can I move a non load bearing wood frame wall?

I am remodeling my basement and want to move the location of a non-load bearing wall that is diving a section of my basement. Currently the wall is down to the bare wooden studs. The header was nailed ...
5
votes
1answer
560 views

What is this electrical device in my basement?

Is it something to do with the doorbell? House was built in 1947 if that helps.
5
votes
3answers
8k views

Can I lay down solid wood planks on top of my basement concrete floor?

I live in Oakville, Ontario and have a detached home with an unfinished basement with concrete floor. I would like to put hardwood flooring in part of the basement. Instead of tongue and groove floors,...
5
votes
2answers
710 views

how critical are distances between studs?

I'm in the process of finishing my basement (east-central Minnesota, US). So far, I've put up a couple of wood stud walls... non-load bearing, simple partition walls. One one of these walls, the ...
5
votes
2answers
7k views

How to finish dirt floor in a basement?

The floor of the basement of our house is half a flat area with a concrete floor where the washing machine and so on are, and half a semi-flat, slightly sloping dirt area, with the dirt area being ...
5
votes
3answers
1k views

Running electric cables in basement shop

I am setting up a workshop in the unfinished area of my basement. I need to run a couple of electrical outlets and would like to run them along the block walls through grey PVC. Will this be a ...
5
votes
4answers
5k views

Can I run a dehumidifier pump to a washer stand pipe?

I have a very humid basement, in which I run a dehumidifier often. To allow for a more constant run, I purchased a dehumidifier pump. It says to run the pump out through a window or to a sink. I ...
5
votes
1answer
4k views

What is the proper way to insulate box sill joists in the basement?

The floor joists of the first floor are sitting directly in breaks in the concrete/cinderblock walls, and there's large gaps all around the edges. I've done some looking around and it appears that ...
5
votes
3answers
5k views

Do I need more than just Drylok to insulate concrete basement walls before framing out some walls?

I have a large unfinished basement. Concrete blocks walls. French drain. All but the top 18 inches or so are underground. It's got great potential to be finished (9 foot ceilings). The basement has ...
5
votes
3answers
744 views

Should I install external basement insulation that does not extend above ground?

Question : Is there a way to calculate energy savings for external, 2inch insulation on basement walls that does not extend above the soil surface, leaving the top couple feet of foundation wall ...
5
votes
3answers
6k views

Using fire rated drywall/sheetrock in a partially finished basement

Background: We have a full basement and I have recently completed about half of it as a hang out spot for my teenage boys and their friends. The other side I use as a workshop and a place to store "...
5
votes
3answers
4k views

How can I protect the soleplate when framing basement walls?

I plan on finishing my basement and I have a specific question about framing the walls and protecting the soleplate. I plan on framing and setting up the walls BEFORE laying the subfloor, but that ...
5
votes
1answer
3k views

Can I hang a hammock from basement joists?

My basement is what I assume is a typical setup, built in the 1970s. 2x8 joists run from the outer cinderblock wall to the center beam with an approximate 11 foot span. I'm thinking about hanging a ...
5
votes
2answers
7k views

How can I clean a very dirty concrete basement floor?

My basement floor has been made amazingly gross (thank you, cats) and I'd like to get it really clean. Is there an option other than scrubbing on hands and knees? Are there cleaning solutions that ...
5
votes
1answer
194 views

What are these 3 thin lines draining into my sump well?

There are 3 thin lines draining constantly into my sump well. The lines are coming through the concrete to the best of my knowledge because i can't trace them on the walls or ceiling. I am having a ...
5
votes
2answers
759 views

What should I do with insulation in basement ceiling?

I am fixing up my basement, and to make it seem bigger- we decided to remove the drop ceiling and are going to have the exposed ceiling and duct work sprayed black. There is some insulation around ...
5
votes
2answers
6k 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
4answers
391 views

Prevent dead animals in basement window wells

How can I prevent animals from dying in my basement window wells? The wells are about two feet deep and have a clear plastic covers over them. The covers don't fit tightly and critters seem to ...
5
votes
1answer
889 views

Is there such a thing as a vacuum sump pump? No standing water above check valve?

Is there such a thing as a vacuum operated sump pump? Most sumps or ejector pumps leave a column of water above the check valve, and leave a few centimeters of water in the sump beside. I have a need ...
5
votes
1answer
18k views

How can I properly vent a basement toilet & shower using an AAV?

When we bought our house the plumbing drains for a basement bathroom were roughed in but they did not install any vent lines for them. We have the first floor plumbing draining into the main stack ...
5
votes
2answers
470 views

Will internal waterproofing solve my moisture problems?

We've been working on our water problem for awhile now. Here's the deal: There is black drain tile under the home (all the way around) tied into a sump crock. Water was only coming in one side. A ...
5
votes
1answer
610 views

How can I frame this area of my basement wall around my water main?

I have started the process of framing my basement, but I've hit a bit of a snag as I'm not sure how exactly to frame around our water main. My original idea was to frame two walls (floor to joists) on ...
5
votes
2answers
785 views

How to deal with inadequate drainage of my walk-up basement?

(Please correct me if any of my terminology is inaccurate!) I have a "den" which is a finished walk-up basement (half-above ground, half below ground). The den floor has vents, and when I look under ...
5
votes
1answer
7k views

What do I level a 2" slope in my concrete basement floor?

I want to finish a 12'x36' part of my basement. The trouble I am having is that it is sloped to a floor drain. I was told that DRIcore and shims would work but the drain is a 2" slope down from the ...
4
votes
1answer
1k views

Can I attach drywall directly to a wood beam?

I'm finishing my basement and need to build a soffit around the HVAC trunks, pipes, and a wood beam. I'm planning to build a ladder on one side of the ducts and another between the ducts and the beam....
4
votes
2answers
6k views

What is required to move a washer/dryer from one room to another?

How hard is it to move washer/dryer from an upstairs room to the basement? What hookups would we need, etc?
4
votes
3answers
721 views

Kind of contractor to hire to install new basement window, where there was none before?

A family member is interested in getting their basement finished, and one of the things they'd like to do is have an additional bedroom in the basement. The bedroom should have a window. However, ...
4
votes
3answers
1k views

How do I build a basement that does not leak when I have a high water level?

How do I insure a basement will not leak when the site has a high water level?
4
votes
1answer
1k views

Do I need to install dry wall in my basement?

I have a concrete basement with concrete walls. I'm thinking about just painting the basement and not have to put up dry wall because I want to save money. Is that a good idea or should I really ...
4
votes
3answers
3k views

How should I go about leveling my basement floor?

My house is from the 1920s, with a poured concrete foundation and floor in the basement. The floor dips pretty noticeably downward from the foundation walls towards a drain near one end of the ...
4
votes
3answers
1k views

Is it okay to protect NM Cable in an unfinished basement with ENT?

Adding a 20 amp subcircuit (120V) to furnace room to turn it into a workshop. Initially it will have one duplex and 2 fourplex receptacles, the fourplex receptacles will be on cement walls, the duplex ...
4
votes
6answers
2k views

Would insulating a basement prevent it from passively cooling the house in the summer?

I have an unfinished basement in Upstate NY in a large old house that helps in keeping the house cool in the summer. Would insulating it limit the cooling effect in summer?
4
votes
2answers
13k views

What to do first in a basement? Dricore then frame on top? Or frame and then lay dricore?

My thinking is to use blue wood with a plastic barrier underneath, and then lay dricore up to the finished walls. However, the dricore instructions say that framing should be on top of the sub-floor. ...
4
votes
3answers
16k views

Renovating interior stone basement walls

We have a 100 year old house, and I would like to finish the basement but leave the stone walls exposed. I believe the stone can look great, but the mortar needs some work, and I am mostly focused on ...