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

4
votes
2answers
315 views

How much water is too much water underneath the basement concrete?

We are getting ready to install a new shower in our basement. When we had our house built about 8 yrs ago we asked to have a shower & toilet drains roughed in. I cut off the plastic cover for ...
4
votes
1answer
808 views

Is there a shower drain pipe in this picture?

I'm certain the 3" pipe on the left is the toilet drain (it is about 12" form the wall and has a rounded cap on it). I'm guessing the shorter 2" capped pipe on the right, up against the wall, is the ...
4
votes
4answers
187 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 ...
4
votes
5answers
1k 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 ...
3
votes
6answers
27k views

Can a wet vac be effectively used as a pump?

Can a wet vac effectively be used as a pump to move water? I figure if a basement floods, that this can serve as double duty.
3
votes
6answers
1k views

What is the cheapest way to brighten a basement workshop?

I have a bare concrete block unfinished basement. I have zero moisture problems (it's a 2007 construction with exterior waterproofing applied to the concrete along with a buried perimeter drain). ...
3
votes
3answers
980 views

Can I install sub floor over carpeting?

Part of my basement has carpet laid 25 years ago The area is dry: never a water, mold or odor problem. We tested a small area and it was a nightmare to remove the glue from the concrete. We are ...
3
votes
3answers
3k views

What actions can I take to reduce moisture on basement floor?

In one corner of my basement, after a few heavy rains, I see a darkening of the concrete floor. To touch, the concrete feels damp-ish. I say damp-ish, because when I pull my hand away, I don't see ...
3
votes
2answers
4k 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?
3
votes
4answers
636 views

How could I flatten these warped sleepers layed on uneven concrete to an acceptable level?

The concrete in my basement is, as most concrete is, very uneven. I was building up my subfloor to match an existing floor, so I got about 200 board feet of PT 4x4 and ripped 1/2" off using a table ...
3
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 ...
3
votes
1answer
257 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 ...
3
votes
3answers
522 views

How should I remove a raised concrete pad on my basement floor?

I have a raised square of concrete, about 42" by 42" by 6" in my basement. Its probably an "equipment pad" of some sort, not sure what it was originally for, but it is inconveniently placed. Its ...
3
votes
4answers
11k views

What is the best flooring for my basement?

I live in Michigan, where humidity is fairly high. I have a 70 pint dehumidifier that works great. I also have a sump pump and water powered backup sump pump. I am looking to floor my basement ...
3
votes
3answers
8k 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 ...
3
votes
1answer
172 views

Do I need to get an engineer for badly poured conctrete basement floor?

I am having a new home built on Cape Cod. The day they poured the concrete floor a storm was predicted and it rained and snowed that night. The floors are a mess, pitted, uneven etc. The builder ...
3
votes
1answer
199 views

How can I find out if a vapor barrier is requried for finishing a basement to code?

I'm planning out a basement finishing project, and I'd like to do it correctly. I've done a lot of research but what I can't tell is if I do, or do not, require a vapor barrier. I was hoping from a ...
3
votes
1answer
190 views

What to do about subfloor covering sole plates?

My basement already has framing and insulation around the outside walls, along with a few outlets in them. If I were to do 3/4" OSB over 1" XPS for a subfloor the sole plates of those outer walls ...
3
votes
2answers
4k views

Vinyl tile installation over a concrete basement floor with moisture

I would like to put some sort of flooring over part of my basement. Something with the look and simple installation of an interlocking garage tile (example) would fit the bill -- this isn't a living ...
3
votes
4answers
2k views

How can I improve the cold floor in my ground-floor unit?

My home is a ground-floor unit in a condominium. The floor is really quite cold and I'd like to do something about that. I saw in another question the suggestion to use Platon. Would I be able to put ...
3
votes
1answer
2k views

How do I attach the framing of a shorter wall to a higher wall above concrete?

Back again with another framing question that I simply haven't been able to answer. For Reference: Gray - Concrete Pink - XPS Insulation Darker Browns - Existing Wood Light Brown w/ Dashes - new ...
3
votes
3answers
2k views

How do I fix the cracks in my brick foundation?

I have some cracks in the foundation of the house I am about to buy. The house is 100 years old, there doesn't seem to be water leaks. The cracks don't look to be offset. Attached is the picture ...
3
votes
1answer
505 views

Is this old basement floor concrete, grout, or something else?

What is the likely construction/material of the basement floor shown below? It's not very flat, and the surface appears sandy. It's almost as if some kind of skim-coat was applied to the dirt floor. ...
3
votes
1answer
584 views

When waterproofing my basement, should I apply 11 mil plastic in addition to the dimple board?

I'm currently interviewing contractors for exterior basement waterproofing. The difference in price is not significant, but there is one major difference. The contractors will: Trench down below ...
3
votes
5answers
5k views

How should I encapsulate a basement wall with chipping paint on a porous surface?

I have a basement wall with several layers of chipping paint. I can't say officially, but I'm pretty certain the bottom layer (dark green in the photos) is lead-based, while the upper layers are not. ...
3
votes
2answers
4k views

Should I seal, waterproof a concrete basement floor before painting?

What is the best sealer/waterproofer to put on a basement floor that I just want to paint. New construction, no water problems, but washer & drier & water heater are in basement and add to ...
3
votes
2answers
78 views

What can I do about my deteriorating basement floor with a large hole that seems to go right through to clay?

We live in 90 year old house with an unfinished basement. I've been working on removing a lot of the crap that the previous owner did, and removing a lot of concrete debris. Then I ran into this ...
3
votes
3answers
82 views

Can I remove the framed wall on the outside of my basement?

I have a 20 year old house (which is a basic colonial box). The basement has a standard poured concrete exterior wall. Against the concrete exterior wall, they framed a standard wood 2 x 4 wall, ...
3
votes
2answers
2k views

Can I put tile in my basement over Ditra and existing mastic?

My basement has been prone to getting water for many years before I bought the house. We're having the basement walls repaired (excavated outside) & sealed. So this problem should go away. The ...
3
votes
1answer
270 views

How can I prevent the water from my neighbor's leaky gutter from entering my basement?

There is some water leakage in my stone basement on my neighbor's side (which is otherwise, very dry for a stone basement). As you can see from picture, the side of our house is loose stone (may be ...
3
votes
1answer
177 views

Can I convert a basement window to a door?

We have a poured concrete basement, serving as the foundation of our home, which was built in 2008 in central Minnesota. The basement has 3 vinyl windows, the sills of which are around 1' above ...
3
votes
2answers
1k views

How do I insulate interior basement walls that are not against the exterior walls?

I'm in the process of building an office and family room in my basement and need some help with the walls and insulation. There is a perimeter drain in the slab around the exterior walls that ...
3
votes
1answer
816 views

Worthwhile to insulate basement ceiling while remodeling?

I have an existing finished basement where I'm in the process of replacing an severely damaged plaster ceiling with drywall. I've got the entire thing open, and as it's an old house (1925) there is ...
3
votes
1answer
1k views

Should I apply rigid insulation between existing basement framing?

I'm replacing wood paneling in my basement with drywall. There are 1x furring strips attached to the cinder block and covered with tar paper, and the wood paneling was attached to those strips. ...
3
votes
2answers
490 views

Is there a way to sound proof my basement while I've got part of the ceiling open?

We had a header beam installed in our basement. The floor joists are exposed for 1ft (~30cm) on both sides for the length of the beam. The basement is an apartment, so I'd like to add some ...
3
votes
1answer
229 views

Basement Bath floor

I'm putting Platon drain board on the slab of my basement because I'm concerned with humidity and moisture. Then I top it with laminate. What should I do with the bathroom? Can tile be put on top ...
3
votes
4answers
1k 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 ...
3
votes
2answers
469 views

Must NM cables around panels in unfinished basements be protected?

I'm thinking about installing a new circuit. The panel is on the wall in an unfinished basement. Three questions: Is the new NM cable going down to and around the panel considered to be "subject to ...
3
votes
1answer
360 views

What is this material on my interior foundation walls?

I have a poured concrete foundation. A portion of my basement is unfinished. It looks like a white plaster has been sprayed onto the foundation wall inside my house: I suspect spraying as there are ...
3
votes
1answer
232 views

Why does the exhaust in my basement bathroom drip condensation in warm weather?

The exhaust in my basement bathroom drips condensation in warm weather, and the drop ceiling tile gets mildewed. I did not use insulated ducting to the outside. Should I wrap insulation around it ...
3
votes
1answer
315 views

Remodel Recessed Lighting in New Basement?

I am finishing my basement and will be installing a drop ceiling. Right now the ceiling is open. I purchased some recessed lighting on clearance at Home Depot for $5.00, normally $20. After doing ...
3
votes
3answers
719 views

What type of flooring can be used on a concrete slab?

I have a split ranch house in NY and the downstairs hallway and half bath / laundry room currently has vinyl tile on a concrete slab. I would like to cover the vinyl tile with a new floor. What is ...
3
votes
1answer
2k views

Would adding new basement windows jeopardize the integrity of the foundation?

We are finishing our basement and would like to install 4 new hopper windows onto the front side of the house. My question is what is the largest reasonably sized window that can be cut from the ...
3
votes
1answer
433 views

How to insulate sloped top of concrete block foundation?

I am planning to insulate the inside of my basement. I have a concrete block foundation. I am planning on going XPS board route, applied directly to wall with foam/tape on all the seams to make it ...
3
votes
0answers
54 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 ...
3
votes
2answers
59 views

mold on basement walls

I have a basement that I am planning on finishing. There was a mold problem. After washing the basement walls, I soaked them in Concrobium. I then painted the walls with a masonry waterproofing ...
3
votes
0answers
247 views

Cost of XPS panels vs. sprayed closed cell foam

I'm starting the process of finishing my nearly full height (7'2") basement and am costing out the insulation. Based on my research of what's best below grade, I'm debating between XPS foam panels ...
3
votes
4answers
532 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 ...
3
votes
1answer
196 views

How can I tile the raised edges in my basement?

I'm looking to tile a basement floor that was dug out about 6", so there is a roughly 6" tall x 4" wide raised concrete border around the whole room, as they didn't dig out the edges. This border is ...
3
votes
3answers
3k views

Basement subfloor, how exactly should I do it?

I am finishing a basement with my father and want to put in a subfloor. I know if there was ever enough water I would probably have to replace the floor anyways but want to give myself a couple inches ...