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
177 views

Damp proofing/tanking a basement

The plaster on one wall of my basement has blown and come away from the wall. I've stripped it all off which leaves a layer of concrete painted with bitumen. What's the best method for sealing off ...
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1answer
830 views

How should I add flooring in my “crawl” space?

Our house has a basement where part of it is finished but one section is closed off by a door and just has a dirt floor. The space is about 25'x25' and about 12' tall (not really a "crawl" space) ...
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1answer
377 views

Do I need to do more prep work on this cement floor before putting in new tile?

In my basement i have a poured concrete floor, and we're re-doing the bathroom down there. It used to have Vinyl flooring, and we ripped it all up. The top vinyl part came up easily, but it left a bit ...
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0answers
49 views

Should I install insulation between the rim joist and the top of foam insulation?

I am in the beginning phases of finishing my basement, newer house with poured cement foundation and engineered I-beam floor joists. No moisture issues in the basement. Rim joist currently has a batt ...
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1answer
41 views

What happens if XPS is an inch away from basement walls?

I live in Maine and am planning to insulate my basement. It has fairly smooth poured concrete walls. I've read online that spray foam is one option, and 2" of XPS directly against the wall is ...
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0answers
21 views

Basement subfloor using p.t. sleepers and plywood?

I am a contractor in the Boston area. I need to install a subfloor over a concrete basement floor. I am thinking of using p.t. sleepers and 3/4" plywood. Is this an efficient and cost effective method ...
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0answers
65 views

Do I use a wooden frame for a basement hopper window?

I am replacing a basement hopper window. The previous owners replaced an old hopper window with a too-small piece of storm window and piece of plywood: I want to replace this with a correctly-fit ...
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3answers
301 views

Question about my sewer stack situation

I just purchased my first home with limited knowledge on many things. At one point my house was outside city limits (using a well and septic) and has since been annexed into the city and brought onto ...
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0answers
102 views

Click vinyl on basement floor with drain

I have a basement with a grade leading to a drain in the floor. The previous owner added a wall over the drain and put self-levelling cement on one side of the wall, over top of existing linoleum ...
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0answers
119 views

Washer tripping gfi outlet

I've been living in my house for almost two years and my washer and dryer have been working fine. I have a maytag Neptune washer and dryer, just the other day I took a packet of tide washing machine ...
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0answers
344 views

How can I stop water from coming up through the floor?

I have a house that is on a high water table, and water is coming up through the floor. The property was excavated around the perimeter a couple of years ago and installed a new Big "O". Drycore was ...
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2answers
1k views

How can I remove a musty smell from the basement?

We're currently setting up a basement to be used as an apartment, and are trying to see how we could get rid of a musty smell that seems to exist in that area. While we're thinking it might be due to ...
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3answers
418 views

How do I insulate exterior basement wall?

Working from scratch with a bare wall. What do I do? 3 hardware stores have told me 3 different things. We have very cold winters here. Looking for cheapest and highest R value. contractor next door ...
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2answers
26 views

How to project basement level of humidity before building?

Assume I am considering buying a lot and building a house in it. Is it possible and how would I project what the humidity level will be in its basement? Say the basement is built using concrete ...
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1answer
60 views

Should I remove, or work around dividing basement walls?

The basement of my house is bare concrete floor with bare concrete block walls. I'm in Canada and would like to (and should) insulate these walls, at least the above-grade portion, which is about ...
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2answers
31 views

How to test for mold in basement?

The air quality in my basement is unpleasant. I don't know if I have mold. How to test for it? How is the smell of mold? I know that we had a water problem in the basement, the walls were cracked so ...
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1answer
265 views

When cutting concrete for basement plumbing, how do you handle rough framing?

I'm going to be doing some cutting of the slab in my basement in order to put a bathroom in. There is plumbing under the slab and a pit with a tank in it, but it is probably 30 feet from where I want ...
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1answer
379 views

What are the benefits of purple drywall?

I am about to drywall a basement. Go purple? Can purple be used around showers? Are there any additional costs or install problems with the purple drywall? Does it require any extra steps? Why ...
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0answers
5 views

Clever ideas needed - our basement door is not tall enough

To meet code we need a minimum 6'6" clearance through all doors. The ceiling height in most of the basement is 6'8", but the clearance through the exterior door is much less than that. On the inside ...
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1answer
38 views

How to maintain temp for always cold office in finished Basement

I work out of my home in an office in our finished basement. The room is always cold whether it's the middle of winter or the middle of summer. I often run a cheap space heater (especially) in the ...
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1answer
20 views

Cutting back a carpet edge.

I have a tile entrance at my walk in basement door that I want to make larger. If I cut back the carpet a couple feet will I have to restretch the carpet?
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1answer
18 views

Quantitative measurement for sound dampening methods

I'm planning to finish off my basement. Which type of basement ceiling insulation is most effective at reducing sound transfer between levels, blown in cellulose or rock wool batts and how much more ...
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1answer
81 views

Subfloors and stairs

It seems to me that many people put subfloors in their basements (and other floors), but what do they do when it comes to the existing stairs? I'm code says that you can't have more than 3/8" ...
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3answers
240 views

How do you install a solar light tube through an outside wall into the basement?

In renovating a basement, is it possible to install a solar-light-tube through the wall to the outside and still gather light?
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0answers
198 views

What kind of subfloor do most people use these days?

I've been reading tons on how to do a subfloor for my basement and I don't seem to be getting any closer to an answer. So far it looks like there are 4 ways to do this: (I'm stealing a good part of ...
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0answers
173 views

What should I do about the insulation in my basement?

So in my basement I have insulation that was put up by the builder. My first question is what is this type of insulation called? The second question I have pertains to finishing the basement. I ...
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0answers
39 views

How do I repair a field stone foundation on 99 year old house? [duplicate]

The foundation on our 99 year old house is made up of field stone and cement. Some patch jobs were done with cementing over the field stone. However that is breaking away and some other places have ...