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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Is 2x8 lumber suitable for window boxes in a poured foundation?

We are about to have a new house built and the foundation is 8" thick. The foundation forms will be wood with metal straps. Finished boxes will be wood. Will 2x8 pressure treated wood be good for ...
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2 votes
2 answers
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What type of drainage solution for water trapped between my walkway and foundation?

I have a walkway that runs 16 inches parallel to my foundation along the entire side of my house. The walkway elevation is also higher than the top of the foundation where it meets the brick. This ...
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Can I divert my roof stormwater away from my storm drain and to a dirt patch 20 yards away

So I have a townhouse in New York City and I've been getting sewage backup from storm water. I added a sewage backflow prevention valve at the front of the house at the sewer, but the shared storm ...
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1 answer
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Skid Steer hit exterior wall.... interior wall now bowed [closed]

we are buying a new build, and noticed one of the exterior walls (load bearing) is bowed on the interior of the home. We inspected the outside, and it appears (likely during the yard grading) a skid ...
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I-beam removal from garage ceiling a structural concern?

I'm purchasing a cape cod built in 1949 that has only a partial I-beam in basement ceiling. It appears 10' has been cut and removed from the garage that is under the back of the home. I currently own ...
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Is this mold growing behind duct tape that's holding vapor barrier to concrete foundation?

We put a vapor barrier down in our crawl space. Some parts of the perimeter were not completely sealed, so a few months ago, I used a clear duct tape to attach the vapor barrier to the concrete ...
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2 answers
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Can a dripping overflow pipe damage foundations

Our neighbours have a dripping overflow pipe that is right up against the side of our property. I have mentioned it to them but they don't seem concerned and are not in a hurry to get it fixed. I ...
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Crack in foundation, what to do?

I noticed a crack in the basement wall above ground next to the basement window. The crack goes all the way through the wall and is visible both inside and outside of the house. I have attached two ...
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What's this channel under my basement slab and how should I patch an area above it?

I previously asked how to patch a couple of holes in my basement's concrete floor (slab). The first was was pretty straightforward. However, the second one's gotten a little complicated so I've got ...
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Gravel beds near foundation [closed]

My wife and I bought a new house a week back in Merrimack, NH. How soon should we put the gravel beds near the foundation? Should we put it before the winter and snow or can we wait and put it in the ...
1 vote
2 answers
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How do you prevent disturbing a wooden fence when digging a foundation?

When digging a foundation beside a wooden fence, how can I ensure my excavation doesn't cause the fence to collapse? I'm digging into chalky ground and the foundations will be around 450mm wide and ...
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What concrete patch product should I use for these foundation/ slab holes?

I have a couple of concrete holes in my basement I'd like to patch. One is a hole in the slab right in the corner that's about an inch deep, and about 1x4" in area: The other is about a foot ...
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What to do with sprinkler pipe under spiral staircase foundation?

I am planning on adding a spiral staircase to my roof, but after preparing the hole for the concrete foundation, I noticed there is this sprinkler pipe 12 inches under the ground which would be ...
1 vote
1 answer
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What is the best landscaping material next to my foundation? [closed]

I have 1/2" river rock against the perimeter of my foundation... One contractor told me this was good to keep ticks and ants away from my basement. One contractor told me this pools water and ...
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8 votes
1 answer
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Contrator made Concrete parallelogram for shed foundation

I hired a contractor to make me a shed foundation from concrete for a tuffshed. I wanted a 10x20 foundation but instead of making it a rectangle he made it as a parallelogram. When tuffshed got here ...
1 vote
1 answer
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Seismic Retrofit - How to decide between more L70 or less L90?

Location: San Francisco Bay Area Our house does not have a cripple wall. Plan A provides both L70 and L90 as options for floor connectors. Using L70 will require more work since we need to install ...
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2 votes
2 answers
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How do I fill a below grade window I found in my foundation that leads to garage?

I bought a house several months ago. It was remodeled 20 years ago and the built on top of the old house. Our gardener accidentally left the hose on in our yard above our garage for 30+ hours at a ...
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4 answers
112 views

Proper way to pour concrete pad

I tried to research this but I could not find any information on the proper process to pour a concrete pad against a house foundation. There were three holes drilled in the foundation and rebar was ...
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What work is needed to resolve water issues related to this settling slab?

Summary of issue This house was built around 1960 on cinderblock foundation, and in 1980 an addition was built on an apparently-DIY concrete slab foundation. Part of that concrete slab extends beyond ...
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1 answer
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Carport Expansion Walls Rotted From Water Damage

We just bought a fixer upper and it seems like some pretty significant issues were missed in the inspection. The inspection mentioned settling in the corner of the living room and rodent activity. ...
2 votes
0 answers
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Can water percolation affect RCC column and footer

There's water percolation around the building due to dry wells which were installed for waste water. I worry whether this water percolation affect the RCC column and footer which is my foundation ? ...
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4 votes
1 answer
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How to protect Building foundation from Dry wells

We have installed 6 dry wells around the building as there was no empty space for drainage water. We did this as per the engineer's advice. Sand texture: It's clay Water table 5 feet Ground water is ...
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1 vote
1 answer
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Simpson-Tie Bolt Length

I am in the middle of my kitchen remodel and the plans call for three Simpson Tie HDU2.5's to be installed. It calls for the Simpson RFB#X5X16HDG (16" bolt) to be set no less than 9" in the ...
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How to fix barn wall gaps at foundation and wall joint

We just acquired a new property and the barn here is kinda strange. As shown in the photos, there is a base 2 by 4 which is running around the slab foundation instead of on top of it. Because of this, ...
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1 vote
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Can the top of the foundation wall be angled to widen basement stairway

The widest part of my basement stairway is 26". Most full size laundry machines are 27" in some dimension. We would like to upgrade from our economy/compact units to newer and larger ...
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1 vote
1 answer
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should I be concerned about this lally column, and should it be replaced?

Would you recommend replacing this lally column, which is located in the garage, supporting three bedrooms above? There is heavy rust around the bottom, and it doesn't look like just on the surface. I ...
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1 vote
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How to fix foundation on bedrock leaking water?

I have bought a 1969 house on a bedrock hill, it's laying on a 12" large concrete foundation, the deepest part of the crawl space is 4' tall and the smallest a couple of inches. On the shortest ...
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1 vote
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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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SikaFix Foundation repair kit -are you supposed to cut the injection Ts and remove them and the concrete that covers them?

The instructions for this product seem to have been written by someone who had nothing to do with it After watching their own vide it is not clear what happens with the Ts attached to the wall and if ...
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SikaFix Foundation Kit -the instructional video shows that cement is applied to the crack prior to the epoxy reason-does it work?

I am referring to this video which is non-sense to me The worker applied cement to kind of cover the crack but you see her pushing the cement into the crack In particular if you have cinder blocks ...
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2 votes
1 answer
486 views

Okay to seal the gap between concrete foundation and sill plates from the outside using caulk or spray foam?

My house doesn't have any gasket between the sill plates and the concrete foundation, so there's some gap between the two (see red circle on the photo, which was taken from the ground facing up). I ...
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0 votes
1 answer
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Can I put a 32” x 60” curbless shower in a post tension slab?

Can I put a 32” x 60” curbless shower in a post tension slab? I’m assuming this must be carefully chipped out, you can’t just send someone in with a partner saw.
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1 answer
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Is it safe or even code to place a furnace on top of a main water line?

This is a new build. Builders have allowed this but I anticipate if I ever have a problem it will be a complete disaster. The furnace is sitting on top of the main water line coming out of the cement ...
1 vote
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Getting a cable below the foundation slab

I don't think I will be able to explain this well so I hope an image will do some heavy lifting. My problem is, I cannot go get a cable directly into the basement via attic->outside wall. The only ...
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1 vote
1 answer
241 views

How badly have I undermined my foundation footing?

I am a first home owner based in Sydney. I have water pooling in my crawlspace so I was advised by a structural professional to lay a french drain around the perimetre of my home. I watched hours of ...
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1 vote
1 answer
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Does this foundation crack require immediate attention?

I am currently looking into buying a house built in the early 60’s and our private inspector noticed this crack in our foundation. The crack is underneath one of the basement windows and appears to ...
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0 answers
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What is going on with my foundation footer?

I have a wet subfloor and been advised to lay a french drain around the house. I have been watching a lot of youtube videos on how to lay ag pipes immediately next to the foundation footer (the red ...
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1 vote
1 answer
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How to build a shed ramp and account for ground heaving

I live in the Baltimore Maryland area and have recently built a shed on a shed pad that is about 8 inches of 57 stone to promote drainage. I built the shed floor joists using 2x6 pressure treated wood ...
1 vote
2 answers
127 views

Should my foundation be wet or dry?

My whole life I was told to put up gutters and get water away from your foundation by building effective drainage. The reason was to stop the slab from having different levels of moisture and cracking....
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1 answer
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Block wall drilling considerations

I've recently moved my woodworking space into our house's basement garage. I want to mount some french cleats on the blockwall. Far as I can tell, the walls make up the foundation and are load bearing ...
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0 votes
2 answers
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Challenging foundation leak

15 years ago we added an extension to the old cinder block foundation which is now 60 years old. The new extension is also cinder block. Where the old and new meet, we have a leak. I put hydraulic ...
0 votes
0 answers
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What size additional footing should be included in a monolithic slab for a 22'x32' carport columns?

In pouring a steel-reinforced monolithic slab for a 22' x 32' carport, the edges are to be thickened to 12" x 12" around the edges & 4" over re-wire in between. Is 24" x 24&...
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1 vote
1 answer
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Old home clay foundation pipe?

My home was built in 1948. It's having a lot of bowing and shearing issues and I need to put steel beams up in the basement. An interior drain system has also been recommended but I'm reluctant - and ...
1 vote
1 answer
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Help me enclose my crawl space

I have a home in the Northeastern USA (Maine). The frost line is roughly 5 feet. My home appears to be built using posts and piers. I haven't had a chance to start removing things to get a better view ...
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How long should you wait to pour concrete on fresh concrete?

I'll soon be doing work in my basement that needs my plumber to break the foundation of my house So they probably gonna break the concrete, do their work, then pour some more concrete to patch the ...
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0 votes
1 answer
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Are nail pops in drywall a sign of structural concerns?

I’ve been noticing more and more mail pops throughout our home. Not sure if they are actually “ongoing” or I just notice them more. I see a lot like the picture below where the nail isn’t protruding ...
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1 answer
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Why do I have wooden frames underground parallel to concrete foundation?

I was digging up the ground outside to fix a gutter drain, and noticed there were pressure-treated wooden frames buried underground, parallel to the foundation (1st photo is the house; 2nd photo is ...
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0 votes
1 answer
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What is this small (~1" x 2") rectangular hole in my basement?

We have some vinyl tile flooring in our basement and the section that contains the washer/dryer had one of the tiles develop a hole due to some kind of depression underneath. I took the time to cut ...
1 vote
2 answers
227 views

Replacing load bearing beams in a covered porch to patio conversion

I'm starting a project to turn my covered porch deck into a covered stamped concrete patio. The 3 support posts for the roof all need replaced. There is a 4th post that needs replaced as well that is ...
1 vote
2 answers
228 views

rebar requirements in foundation

follow-up question: I am attaching a diagram with my foundation plan. I am in north NJ where frost line 3 ft. Can you kindly look at the plan and opine; I tried to use best practice from all replies. ...
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