Questions tagged [slab]
The slab tag has no usage guidance.
56
questions with no upvoted or accepted answers
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New, larger slab over old slab, but needs some repair
I have a 20ft x 30ft (East-West x North-South) concrete slab (in two sections: 20x10 piece on the west, and 20x20 piece on the east) that I'd like to enlarge to about 30ft x 50ft in each dimension. ...
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Why is my slab still warm 24-hours after turning of in-floor heating?
Looks like we have a slab leak in our house. I noticed warm tiles around the laundry area where we have pinpointed the hottest point and the warmth seems to spread about 6 feet outwards.
The weird ...
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Insulating slab and vinyl siding
I have a really cold corner of my house in a duplex. Here are some shots from an infrared camera. I hope we can get this fixed without tearing down the siding or ripping out freshly installed kitchen ...
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Is gravel required under a concrete slab that is beneath a fence (not supporting it)?
I have a vinyl fence around the back of my house. The posts are already supported by cement. I want to create concrete forms in between the posts to cover the dirt so I don't have to deal with weeds ...
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72
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Will the vent arrangement for my bathtub pass inspection?
4 fixture bathroom - Florida inspector says all fixtures need to be wet vented in bathroom.
I want to ask if the bathtub to the right with its own vent will work. I believe the inspector is wanting ...
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1
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140
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What purpose would a flashing between the studwork baseplate and a concrete slab serve?
I have seen and read online that the baseplate is usually fixed directly to the edge of the slab. However, I also saw a passive house video on YouTube where the builder placed a rubber gasket under ...
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79
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Fill the foundation cinder block?
Removed carpet from a lower level walkout in a 1985 Minneapolis house and found the patio door is set on the cinder block foundation wall. Planning on installing LVP. Should I clean the detritus and ...
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466
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Can we pour slab even if the bricks below it are not leveled?
So we were about to pour concrete on on top of 3 layers of bricks that is already done.
I always ask the guy who manages and he always say its leveled , so today I went my self and we all checked but ...
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2k
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Cabinets Installed Directly on Slab?
I just had some cabinets installed in my kitchen directly on the concrete slab foundation, and the installer didn't use any moisture barrier or anything comparable to ensure the wood products avoid ...
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64
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Yellow mesh material in slab foundation cracks
We recently purchased a home in central Florida, built in the late 80s, a stick-built home on a concrete slab. Today I noticed a small uplift and depression through the carpet.
Touching the carpet, ...
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95
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Preparing concrete slab for porcelain tile after removing vinyl tiles and mastic
My bathroom has VAT (vinyl asbestos tile) and I have taken to removing it by steaming the tiles and peeling them up slowly. For the black mastic underneath I am using BlueBear 500MR which is just a ...
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406
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Drilling Under Concrete Slab
My church is trying to figure out how to move their soundboard to a different spot in the sanctuary. All the existing wiring for the soundboard (mics, speaker wire, power controls, etc) come in ...
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218
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How to fill cracks in concrete slab inside house
My house had some foundation issues and the slab inside the house has separated from the foundation wall mostly all around inside the house. Some cracks are about 1/2" and I'm thinking in filling ...
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1k
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How to repair broken suspended cement slab
The very corner of the cement slab, which forms the floor of my basement, broke off. There was nothing supporting it underneath. the portion that broke off forms a triangle 11" x 10" x 14" x 3-6" ...
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Convert Pier and Beam to Slab Foundation
Due to undersized foundation (5" wide x 12" deep concrete wall with no extra footing), low exterior grade to siding clearance, and little to no crawlspace access, and a bad floor that needs replacing ...
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what is best vapor barrier for second floor bathroom on a concrete slab?
My question is about the separation of the bottom of the 2" concrete slab I'm installing as subfloor to my second floor bathroom, and protection of untreated wood beams and joists in 1876 house: I"ll ...
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40
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Basement slab heave
I have a finished basement with a storage room that has no flooring (just concrete)
There is a French drain, and all downspouts direct away from the house. I noticed some small heaving in this area ...
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40
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Concrete slab over a shed window
Building an economy shed out of concrete blocks 8"x8"x16" and half blocks.
I am attaching a schematic drawing.
The shed base is square about 12.5' (9.5 blocks) each side.
Inside height ...
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32
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Large drain opening found in basement slab. Best way to tile around it?
I was tearing up a wooden platform the previous owners had in our laundry room because I'm going to tile.
I figured I'd find a drain in the slab underneath but not something this big. It's probably 12 ...
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40
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Cracks in new house slab foundation?
Here are the pics of our foundation home in Ocala currently under construction with cracks in the garage running from one side to the other and in the kitchen from the sink square to the shower stall ...
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What could this conduit under my basement slab be?
I was moving a shower drain for a basement bathroom and exposed what looks like some kind of cable conduit under the slab. It looks like the kind that's slit all along the length of it and just snaps ...
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87
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Water seeping under bottom of vinyl siding
Just moved in this house a couple of months ago and just noticed our home extension has water seeping through from the bottom of the vinyl siding whenever it rains. My house sits on a cement slab. I ...
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36
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Question on soil and grass above foundation
My wife and I just bought our dream 1960s renovation and we noticed that the yard and gravel patio area is pretty much covering up the entire foundation. Is this something we need to worry about long ...
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183
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Underpinning concrete slab in garage
I am looking at buying a property with a raised section in the garage with a concrete floor. This is a garage entirely seperate from the house. The earth under the end of the slab has fallen away:
...
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22
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How to repair cracks in concrete floor after a slab leak?
Had a cold water leak in pipe under slab. Water came through cracks in floor. What is best and inexpensive way to repair the cracks?
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45
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Double P Trap Unvented Under Slab
My kitchen sink has 2 p-traps that are unvented. One p-trap is under the kitchen sink, and the second is under the slab.
What should I do? I am concerned about toxic sewage gas, not a slow drain. It ...
- 1
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0
answers
78
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Cement porch removal
We are planning on removing a cement porch from our house, which has a room underneath it. My husband did this to my parents house, using a sledgehammer, but he was 35 years younger. He has some type ...
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224
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Is it okay to reroute this water heater line?
The slab under hot water heater 3/4" hot manifold was leaking, so I decided to have plumber reroute through the attic.
The 3/4" copper that supplies hot water to bath manifold through the ...
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68
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Filling the holes for a concrete slab
There are two holes occured on 1st floor slab which are irregular in shape and able to see the ground floor which are having beams between it. How to fill those holes without disturbing the slab???
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136
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Extend concrete slab on slope
We have an existing concrete pad that is 18’ wide x 20’ long. The slab is level but is built into a hillside so has poured concrete that goes from level at access point to about 2’ at rear. We would ...
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PolyRenewal foam injection for settling slab foundation
My house is built on a concrete slab foundation and is 20 years old. Part of the slab, roughly 15'x6' in size under the kitchen, is cracking off from the rest of the foundation and settling down. In ...
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185
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Can I attach a deck to floating slab building?
I have a garage that was built on a "floating slab". I want to attach a deck to this garage using a ledger board at the garage, and then posts with a beam at the other end. If I put the ...
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344
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Dry Well Against Foundation
I live in a house with a slab foundation. The soil is red clay. One of the downspouts outputs 8 inches above the ground into a small flower bed and walkway. When it rains, a divot is formed into the ...
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43
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integrity of unreinforced 6-inch concrete slab floor for a 15mx20mx1.8m pool
Our church built an in-ground pool with the following dimensions: 15m x 20m x 1.8m (roughly 540cum) in our retreat center. However, no reinforcing bars were added when a 6-inch thick floor slab was ...
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42
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Weed and water "skirt" around a slab
I'm working on plans to put a "skirt" around the slab of the house both for weed control/ termite visual inspection and to stop any water pooling against the slab.
I've settled on crushed ...
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0
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508
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Is this a foundation problem - void space underneath exterior brick wall
We moved into this house 5 years ago and did not find a piece of dead tree root at the bottom of the wall until yesterday. It seems the previous owner cut the tree, but here is a small damage to the ...
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154
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Foam/Poly Jacking Garage Floor?
The door jambs on the two exterior hinged doors for my garage are becoming an issue with being out of square. The floor is otherwise pretty much OK (no cracks, etc.) The floor is part of a 6" ...
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How deep should I encase electrical wire in concrete slab
I need to run electrical in concrete slab indoors, I am planning to use 1/2 flexible PVC conduit. It is a residential slab indoors.
How deep should I bury it?
Is there any code station the depth?
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483
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Will cutting a trench affect structural integrity of the foundation
I am renovating my kitchen and putting in an island, by the code an island must have an outlet. I will have to put a trench into my concrete slab foundation to make it happen. (To run the electrical).
...
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38
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Home Bball court of concrete
I am looking to make a basketball court in my yard. Probably gonna be around 36’x25’. I think a concrete truck can bring about 10 yards of concrete. Would a 3.5” thick slab be strong enough? Do I need ...
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68
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Techniques for mitigating pavement ants during gut reno in bathroom on slab foundation?
planning a bathroom renovation in a 1950s ranch on slab. Ants appear in several areas where walls meet the floors.
Is there a specific practice for sealing the passageways, that expands/contracts with ...
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460
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Why is there a hole in my slab?
We had a leaky pipe burst over the weekend. It seems that it had been leaking (slowly) for some time, so there's some water damage to the wall where it was located. In order to clean it up, I removed ...
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81
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Converting old mechanics garages grease pit into a storm shelter
We’re wanting to convert an old mechanics grease pit into a storm shelter. What would be the best way to do. We were thinking concrete for a slab and a wooden door for entrance. What is the best way ...
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How can I provide effective access to a subdivided space below a non-structural floor?
One problem faced when finished spaces are built atop concrete slab floors (whether slab-on-grade/slab-as-basement-floor, or a suspended reinforced concrete structural slab floor) is "where do the ...
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How to convert bathtub drain to shower?
I have a 1960's house. I am renovating a bathroom, removing bathtub and putting in shower. I will be using Schluter Kerdi-Shower for conversion.
I would like to know what parts of that iron drain ...
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62
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Cast iron sewer pipe leak? Or something else? Shower pan?
We have a concrete slab and it’s soaked. Water has been coming up through the grout of our ceramic tile. This may have been something that happened over time and we only noticed now. We had a few ...
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40
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Leveling a concrete Slab
If I need to level a slab with a 2' sag in the center, should I pour regular concrete up to 1" before using a leveling compound?
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485
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Why is a corner of our garage floor slab all uneven?
Our house was built ~1985, and it has quite a few oddities. One of them is an irregularly shaped corner of our garage. Our garage is ~32' (9.75m) x 32' (9.75m), and a significant section (not square ~...
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What type of insulation and waterproofing (if any) should be done for a monolithic slab on grade?
When building a new residential home with a monolithic slab on grade (footer and slab are poured at the same time), should any water proofing, insulating or drainage be added besides the vapor barrier?...
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154
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How to renovate a basement floor?
I'm going to remove a berber carpet glued to a concrete slab and I'm not sure how to prepare the slab for a finished floor.
I'm renovating a room in a finished, walk out basement. It's adjacent to ...
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