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0answers
14 views

What material can I used to fill gap between slab and house so that I can place vinyl tiles on the slab without worrying about cracking?

I am replacing some very old carpet in a sun room off my basement. This sun room was built around an existing concrete slab. I'd really like to put something other than carpet back in here, but am ...
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0answers
32 views

Kerb concrete slab

I'm thinking of using some kerbing to retain a small mound of earth from falling onto a new concrete slab drive. But I'm not sure whether to add the kerb before or after laying the concrete slab. If ...
2
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2answers
76 views

What's the right approach for insulating the slab & footings underneath a masonry fireplace/heater?

The fireplace will be located in the middle of the concrete slab (away from the foundation stem walls) so it will have its own footing. My impression is that footings should rest on soil & gravel ...
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1answer
129 views

How to fill / seal in-slab hvac ductwork?

My house is built on a slab. Within the slab are "channels" which act as ducts for the HVAC system. I assume it is partially lined with metal but based on photos from an HVAC-cleaner, it's hard to ...
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1answer
28 views

Replace portion of slab for radiant heat

Our 1600 SF basement has a slab floor with no insulation underneath. I'm redoing the bathroom (roughly 100 SF, with 7' along the foundation wall) and would love to put in radiant floor heating, but I ...
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2answers
137 views

What's the proper way to address a moisture issue in a concrete slab?

About 4 years ago my wife & I purchased a home. It was approximately 10 years old at that time. The foundation is a concrete slab. Approximately 2-3 years before we purchased the house, the ...
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0answers
81 views

house built on a slab and has about 1" gap between the walls causing a draft

My house was built on a concrete slab in 1998. My son put up wainscoting in the living room and when he pulled off the baseboard he said you can see the house next door. He then checked several other ...
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1answer
86 views

How can I close off a toilet drain in a concrete floor

I want to remove the toilet and turn the bathroom into a laundry room. How can I close off the drain?
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3answers
195 views

Is insulation necessary under slab with hydronic radiant heat?

We are getting ready to pour a new concrete slab over top of an old slab where a house was demolished. The old slab is 4-6 inches thick, and the new slab will be 3-4 inches thick. We would like to run ...
1
vote
1answer
331 views

What is recommended method to fix sunken garage floor slab?

I have an attached one car garage where the floor slab seems to have sunken in one corner by about an inch and a half and varies lesser amounts in other areas. The slabs continues behind the garage ...
2
votes
1answer
253 views

What is the correct procedure to turn a 10“ rough-in toilet drain into a 12” rough-in drain when the drain goes through a slab-on-grade?

I need to replace a leaking toilet, but the distance from the drain to the wall is about 10.75". The selection of toilets that I'm finding in the 10" rough-in range is pretty pathetic and overpriced, ...
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vote
1answer
150 views

How to fill hole in slab after installing new closet flange

The plumber broke up some of the slab, removed an old cast iron Y and put in a new elbow and closet flange. He left back filling and patching the slab to me (my choice). The edge of the hole is ...
3
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2answers
195 views

Should I patch this hole in my slab?

I'm in the process of tearing out carpet and installing laminate in my guest bedroom. After I got the carpet out, I discovered a hole several inches across underneath the wall that borders the garage. ...
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0answers
54 views

help and advice on shower renovation on existing slab

We recently purchased a home that is built on a slab. We're going to have the floors polished but we're debating about what to do with the existing shower. It currently has some sort of hard foam pan ...
1
vote
1answer
100 views

Strange smell in August only [closed]

I have a strange smell (somewhat like decomp but its not) that has presented its self every August since 2009 and stays for 14 days. It comes on strong the second day and stays the same smell level ...
0
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2answers
157 views

What type of insulation should be used to deter subterranean termites?

My house's structure is made of wood and there are subterranean termites (non-formosan) in my yard and area. I am planning to excavate and insulate the slab perimeter in the interests of saving on ...
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3answers
1k views

How should I support upright posts on a slab with no footer?

We are wanting to use a structural ridge beam to put a new roof on our house. I have been talking with an engineer who said that we need to determine how big the footer is under our slab. However, ...
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3answers
172 views

How do I join pieces of wood tiles, 12“ by 12” pieces, to make a larger slab?

I have a project to work on that requires me using larger pieces of planks than what I currently have. I have square planks all over the porch that would suffice if only I had a good way of fitting ...
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2answers
312 views

options for new floor over concrete slab

I am in the middle of a basement renovation, roughly 1000 sq feet. The existing floor is some sort of vinyl sheet material over concrete slab. There is an existing floor drain in the current washing ...
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vote
1answer
63 views

How to insulate slab that's been extended?

I bought a house built on a concrete slab on grade. It's an older house, so no part of the slab was insulated. At some point in the past, previous owners decided to pour concrete around the entire ...
1
vote
1answer
193 views

How can I repair my two sloping concrete slabs?

I have a home I'm working on that has been in the family for a while. I have two slabs ,one where the original home was built and another where it was added on. The two slabs run the entire length ...
6
votes
3answers
310 views

Frame Overhanging Slab by 3inches and not attached to support bolts

I'm using a contractor to build a brand new 2000sq foot home. There is one section on the house that looks suspect. The slab subs obviously overpoured, and it looks like it was compounded even more ...
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2answers
499 views

Heating issues with slab foundation 50 year old home

I put a new furnace in (97% efficiency) because this home is so cold on the floors that my feet are cold anywhere I walk. Now have heat vents in ceiling but not helping any. Always cold, especially ...
3
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2answers
321 views

Is this normal for the brick to extend past the concrete slab foundation?

I am in the process of buying a home and noticed that the brick extends past the concrete slab foundation. I checked different houses around the area and all were flush with the concrete slab. Is this ...
1
vote
1answer
290 views

How can I smooth an uneven concrete floor?

I have had a extension built at the back of my house. It is almost complete now. I had a 6 ft. 6 in. patio door at the back of the house, and the builders left it till last to remove. This will leave ...
3
votes
3answers
690 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
1answer
5k views

How to stop concrete slab floor from absorbing water

This weekend my wife decided to clean up my office. When she pulled the old filing cabinet away from the way, she noticed the baseboards and carpet carpet were showing signs of water damage. It's a ...
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vote
1answer
381 views

Sand dribbling out under baseboard. What could cause this?

The scenario: Slab on grade construction. House built 1938, slab poured in 1950's we think. San Francisco area. New framing, new hardwood floor, new baseboards. Completion 6 months ago. Altriset ...
4
votes
1answer
219 views

What are the dimensions of the steel in the concrete slabs on the upper floors of my house?

Drilling holes (for curtains) in the ceiling of the 1st floor(2nd floor in the US) of my house I ran into a steel rod in the middle, running parallel to the outer wall. The steel is about 2.5cm in ...
4
votes
1answer
470 views

What is this pipe called, and how does it work? (Round II)

OK, thanks for people's help on my last question, now I've confused myself again. I came across this picture, similar to the last question, but I don't think it's a cleanout. It looks like a vent to ...
6
votes
2answers
14k views

What should I do about a crack in the concrete slab in my living room?

We purchased the house about 2 years ago. The house is about 50 years old. Today we removed the carpet and the hardwood floors under the carpet. We found out the slab has an approximately 10ft long ...
2
votes
1answer
535 views

How should I finish around this hole in my slab?

This hole in my basement has a roughed-in drain pipe for a bathtub (can't really see it, but I've verified it's there): As you can see, it's about 12"x16". As I prepare to finish the basement, I'm ...
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votes
3answers
490 views

Is it a problem if the frame of my house extends 1 - 2" from the slab?

Is this a huge problem? The house frame is about 2" off the slab along the north side. On the other sides of the home it varies by 1", but not in as many places.
2
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4answers
5k views

Can I float a tongue-and-grooved 1x12 pine floor over a concrete slab on grade?

I have bare concrete floor that was, until recently, covered with carpet. After recently seeing a friend of mine purchase raw pine, shape the tongue-and-groove himself, and seal it to achieve a ...
2
votes
4answers
5k views

How can I prepare this concrete floor for tile?

I'm looking to replace an old carpet in my finished basement with tile. I've removed the carpet and found a surface with some peeling paint, which I've read needs to be removed since the thinset for ...
3
votes
2answers
2k views

Is it wise to cut a long trench in concrete slab foundation?

I've got a two-car garage (4-inch concrete slab on grade) that I'm turning into living space. I want to put a bathroom out there but I need to get plumbing through the floor. I didn't think it was ...
3
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3answers
10k views

What cement product should I use to fix a hole in my slab?

I was removing old thinset and self-leveling cement in an area in preparation to tile it when the 6" chisel and demo hammer I was using sunk in to a specific spot. I found that this specific spot had ...
6
votes
2answers
9k views

Is it normal to find cracks in new concrete?

I'm having a house built and they just completed pouring the slab for the foundation a few days ago. When I inspected it today I noticed several narrow (but sometimes long; one or two do them appear ...
3
votes
2answers
5k views

How can I level concrete pavement for an above-ground pool?

I want to set up an above-ground pool (14' round) on my back yard. There is a relatively good place for it, where there are concrete slabs, however, there are two problems: The slabs are not level. ...
2
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1answer
662 views

How many bags of concrete do I need?

I would like to make a small concrete slab of the following dimensions. Length: 1.2m Width: 0.86m Depth: 0.09m The cubic volume as i understand it is all those numbers multiplied. result: 0.0929m2 ...
8
votes
1answer
5k views

What drainage should I install under concrete slab in garage?

I have a concrete garage which is halfway inside the hill. Essentially the surface behind the garage is at garage's roof level. Garage's floor is concrete slab 3"-4" thick (at least it's best I could ...
8
votes
2answers
149 views

How do I make the slab stable?

The tiles/slabs I have outside my house are loose. So when I walk over them and step on the sides, the opposite side lifts up and its very awkward and dangerous. I would like to fix it properly on the ...
3
votes
2answers
8k views

How to Insulate a concrete slab foundation in an older house?

What are some ways to insulate a concrete slab type foundation in an older home built in the 50's? The slab as far as I can tell is not insulated at all and results in a very cold floor and living ...
7
votes
4answers
9k views

Is my shower drain leaking under the slab?

My wife & I renovated our master shower a couple years ago. About three months ago, we noticed the baseboards in the guest bathroom (on the other side of the wall from the master bath) were ...
4
votes
2answers
691 views

What are some tips for installing a small shed?

I want to put in a small shed to store my push lawn mower and perhaps a few other things. Our village's website states we need a permit: SHEDS – Must be either anchored to a concrete slab or have ...
3
votes
2answers
6k views

What could cause a ground/soil smell on the first floor?

My house is on a slab (no basement, no crawl space) and every summer when it gets hot and humid i am getting a ground/soil smell in our living room. First i was blaming it on the absence of the ...