Questions tagged [foundation]

The base on which a house or other structure is built or installed, connecting the structure and transferring its load to the ground. Questions using this tag should include additional tags to identify the type or material of the foundation.

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1answer
72 views

Is it OK to drill/notch an end joist (not rim/band joist) as long as it's continuously supported by a foundation wall?

I'm in the process of trying to run some CAT6 and speaker wire at various places in my house. One of the things I'd like to do is run speaker wire in the living room to a wall plate behind my sofa, ...
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1answer
14 views

Foundation for retaining wall on a hardcore base?

I'm looking to build a retaining wall 800mm (2.5ft) high and 225mm wide at the side of my house. During the original construction groundworks, the ground around my house had to be raised up about ...
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1answer
40 views

Is this joint between the foundation and first row of mortar typical

Just wondering if this is a normal appearance for the area where the foundation and first row of mortar/brick meet. There are no signs of any structural cracks or anything like that in the area. Is ...
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1answer
51 views

What should I use to patch this gap between brick siding and top of foundation

I have a small gap between the top of our foundation and the start of the brick siding in one isolated area and was wondering what the best material would be to fill this area.
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1answer
42 views

Should I be worried about the weight of french drain gravel on my foundation?

Should I be concerned about the added weight of 3/4" river rock in a french drain 12 inches from my foundation? If there is already a crack in the foundation and a slight lean, will the weight of the ...
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1answer
19 views

Water damage to foundation

My yard is on a downward slope so when there is a lot of rain water accumulates in my yard up against my house. I have drains in my yard but they still don't seem to help. I've been told that I have a ...
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2answers
47 views

Repair old cracked wall spackle from foundation shifting

Some weeks back I woke one morning to find a large flake of spackle(?) had cracked and almost come completely off the wall in my apartment entrance: According to the board of our housing cooperative ...
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2answers
64 views

How is my house's foundation constructed?

I would have thought I'd be able to do an image search for help figuring this out, but so far I've been unable to put together a set of keywords that looks like my situation. I have a two-story house ...
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2answers
55 views

How shallow can a basement be for an accessory dwelling unit (ADU)

I'm looking to build an ADU with a habitable basement and keep it classified as single story. Single story maximum height is 18' where I live (San Jose, CA). Additionally, basements must have an ...
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2answers
34 views

Cracked Tile in New Construction Home - Foundation issues?

I've recently moved into a new home built in June 2019. Some hairline cracks developed in some of my tiles, but I didn't worry about it too much because they were barely noticeable and the builder is ...
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3answers
264 views

How far out of square is too far?

What is a good margin of error on the diagonals for a 5x10 foot, square wood foundation? I have about 1/2" discrepancy on the diagonals. (for a shed).
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2answers
73 views

Foundation pier repair

I have a rather unfortunate problem, rats got into my crawlspace and managed to tunnel directly underneath one of the internal piers(there are quite a few down there, maybe every 8 ft square? I am ...
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3answers
84 views

Water pressure from slope causing crack and lean in foundation. Is a French drain the answer?

We have a concrete basement foundation. It's the type with a retaining wall that can only be seen from inside the basement and a second outer wall on top of which the structure is built. The ...
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2answers
51 views

Foundation design for a small cabin

I'm planning to build a 14ft x 16ft A-Frame on grade in Vermont this summer. The frost line here is 4ft. My site is at the top of a small, wooded knoll. I know from some exploratory digging that The ...
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0answers
46 views

How to keep a screened in porch from leaking

We recently had a contractor bail on us without finishing the addition to our home. One of his many misdeeds was our screened in porch. It is On the second floor - above our new master bathroom ...
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1answer
70 views

possible causes of this cinder block foundation deterioration?

I had to digout my foundation last summer because of water issues in the basement. No surprise that the drain pipes were completely clogged with a thick mat of tiny roots and mud. I was however very ...
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1answer
72 views

Determine severity of foundation crack

I have a crack in my foundation that previous owners had filled with epoxy. The crack has opened up slightly at some point in the last 8 years. Is there anything I can do to determine (short of ...
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2answers
1k views

Is it common for residential foundations from the 1960s to contain asbestos?

Is it common for residential foundations to contain asbestos (circa 1968)? We recently had a drain line extended and I don't recall seeing any protections in place other than light dust masks.
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1answer
52 views

Placement of a 5" hole in foundation

I have some concerns over where to place a 5" hole for a pellet stove chimney. The stove is in our basement, and I'd like to have the chimney exit through the exposed part of the foundation. I have ...
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1answer
70 views

Using tarpaulin to stop soil absorbing to rain, trying to prevent foundation damage

There is a forecast for several inches of rain between Thursday and Sunday here. I am in an old brick home with a sandstone block foundation. The soils are clay in this area. There is a rather large ...
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1answer
59 views

Pouring concrete slab against 2 block walls and an asphalt driveway

I need to pour a small (~5' x ~5') concrete pad that will butt up against 2 basement block walls (A&B in the diagram) and my asphalt driveway (D in the diagram). I'm having some trouble figuring ...
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1answer
42 views

jack main beam pier construction

House is cabin construction 2x4's. Dirt floor. Main support piers in the center of the house are sunk concrete, but the beams are sagging all over. Center support piers are reasonable. I used ...
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0answers
19 views

Patching cracked parging

What's the best method for filling in small cracks in interior foundation wall parging? I've heard using premade stucco patching. Thanks!
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1answer
32 views

Repairing finish on basement block foundation wall

I have a room in a partially finished basement which was done by the previous homeowner which is needing repair to the walls. The house is old (1925), and the foundation is concrete block. The room in ...
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1answer
51 views

How to build sunken shed foundation with insulation

I'm planning to build a garden office shed about 2.5m wide by 3m long. Regulations in the UK mean I cannot exceed 2.5m high since it will be close to the boundary of my property. The picture below ...
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0answers
14 views

Heavy water stains on parging at bottom j channel seams

I have a 1970s home with aluminum siding on the main floor and parging on the basement/foundation. Where they meet there's a J channel or similar, with one seam in the middle of the front of the house ...
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1answer
40 views

Crack on basement wall/foundation wall

I noticed a crack on our basement wall or foundation wall (not sure what to call it). Our house is fairly new, built on mid 2017. We have a finished basement so there's no way to check the crack from ...
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1answer
39 views

Repairing above-ground gaps and holes in foundation

I am moving into a house (built 1911) that had a few things turn up on the inspection. One corner of the basement has an indoor cistern, and there are some gaps and a hole in the cinder blocks just ...
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1answer
38 views

Process and product to fix concrete slab surface issues prior to framing over them?

I have some issues with the slab that was poured for a garage, and I need to frame an interior wall over a bad area. The slab was poured with a bit too much water (5.5 slump) on a hot day in July. I ...
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3answers
247 views

Is this gap between foundation and siding supposed to be here? If not what should I fill it with?

I have hundreds of crickets in my basement every fall. I see them crawling up my foundation so when I looked underneath the siding I see this. There is what looks like ripped plastic paper but then ...
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1answer
69 views

Foundation flooding caused by new septic line

We've been living in our house for 10 years, and a few years after moving in our sewer line began backing up every 6 months or so. Each time, we'd have to pay a plumber to come in a "roto root" or ...
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2answers
113 views

Numerous Cracks in Poured Slab

I am building a home in the houston area. nearly 3000 sq. ft. 1 story house, so a pretty big slab. I am noticing now while walking through the home during the electrical wiring stage that the slab ...
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2answers
34 views

Foundation cracks in new home construction North Texas

I am currently building a house in north Frisco and I noticed a some cracks from the middle of the foundation and they go down to the side as see in the pictures. I have not yet contacted the builder ...
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0answers
36 views

My granite foundation was underpinned and has load-bearing 6x6 posts around the perimeter of the basement. How to repoint behind them?

My building has a granite block foundation supporting a brick structure above it. In the 80's, the building was gutted and the foundation was underpinned. They added load bearing posts around the ...
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5answers
175 views

Pros and cons of plastic/gravel shed bases vs concrete base

I'm going to have a 10x8ft shed installed in my back garden. I'm wondering if I should pay someone to put in a concrete slab base or use one of those interlocking gravel filled bases you can get. I'...
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2answers
111 views

How to protect wood when applying concrete patch

I uncovered a situation where a couple header boards were embedded into the basement foundation. You can see in the photo they punched a hole in the foundation and ran the boards through it. I can't ...
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1answer
58 views

Extending 2x4 joist to square up shed foundation

Long story short I constructed a shed foundation on uneven ground with piers concreted into the ground. This however turned out to be 2” out of square and is a slight rhombus shape - and to correct ...
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2answers
53 views

Shed foundation piers are not square

Basically I've constructed a raised shed foundation using piers concreted into the ground, however they are out of square by 2 inches in opposite corners, so the shape is a slight rhombus. See below ...
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2answers
215 views

Horizontal Crack in Foundation

I was hoping to get some guidance. I recently purchased a home. During the inspection process, the inspectors put in their report that there was a hairline horizontal crack in the foundation. It ...
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3answers
64 views

Does Homeowner's Insurance Typically Cover A Broken Well?

My well is horizontally fed through a wall in my foundation. It recently rained a lot and I believe the pipe that feeds my well has been cracked. I had to cut the power to my well pump in order to ...
2
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1answer
210 views

How to Fill Gap Between Steel Beam and Concrete Pillar?

I have a Concrete Foundation Pillar that is 5/8th of an inch too short. What filler materials are appropriate when a steel I Beam will be resting on it? Can I use mortar, or is steel more appropriate?
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2answers
49 views

Need help identifying flooring element

I am looking to install vinyl flooring on my basement (ground level). I will be removing the existing tiles. On 2 of the walls (the ones that face the exterior) I have this mini step along the walls (...
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0answers
91 views

Why is there a large walled off space in the middle of my basement?

I just moved in a couple months back and noticed that this wall was a lot thicker than expected, lots of unaccounted for space. I was honestly expecting to find a body in there :P glad I didn't! ...
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1answer
126 views

Will preformed concrete piers make a sufficient shed foundation in a seismically active region?

I'm building a 10' by 16' shed/workshop, and I'd like to use preformed concrete pier blocks. Is this a sufficient foundation for such a structure in a seismically active region like the Pacific ...
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0answers
41 views

what to fill surface water drainage trench with

Cabin is at bottom of steep driveway. Water runs down and into crawl space. One very large ditch about 15 feet up gets most of it. This ditch gets remainder. On hand - 1 inch round stone, tyvek, ...
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1answer
36 views

Foam sheeting and siding below grade

Just bought a new house and there was a newer addition that had a shallow ditch on all sides. The yard slightly slopes towards the house. I was going move some soil to properly grade, but discovered ...
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0answers
35 views

Concrete slab insulation is in the way - cut it back for flooring?

I have a converted garage built on a concrete slab. The slab is insulated with styrofoam panels which extend into the room about three inches, so the flooring does not go all the way to the interior ...
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1answer
70 views

Why would only part of a foundation be stabilized? [closed]

I just came across a foundation repair report, and I noticed that the area of the home that most significantly deviated (bottom left) from the reference point was the only part not stabilized. What's ...
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0answers
44 views

Foundation related crack assesment

I'm considering purchasing a home built in 1969 in a region with clay soil, where foundation settling is quite common. Looking at the exterior brick veneer, I noticed numerous cracks on 3 sides of the ...
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0answers
41 views

Repointing stone basement

I am looking into which cement to use to repoint our old house (built ~1900) stone basement. I found conflicting advice, some suggesting type N or type S is fine, but some sources suggest that ...

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