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Foundation advice (lemmy.world)
submitted 11 months ago* (last edited 11 months ago) by Bitswap@lemmy.world to c/homeimprovement@lemmy.world

Drawing

Red is a concrete foundation. Black is rotting wood foundation that needs to be replaced.

Foundation issues suck. House has foundation issues. Most of the foundation will need to be replaced. Part of the house currently has a wood foundation which is rotting. There is an addition which has a concrete foundation. (See image above).

I know that the wood foundation can be replaced with a pier and post foundation. They can stabilize the house, dig and pour piers, then use metal posts to brace the house at the right height.

Is a pier and post foundation the only option? Is there a way to do a concrete foundation?

Edit: The image is a top down look at the perimeter of the house. The red part is a ~600 sqft addition. The black part is the main house.

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[-] TrickDacy@lemmy.world 11 points 11 months ago

TIL there is a such thing as a "wood foundation"..

[-] Bitswap@lemmy.world 6 points 11 months ago

Yes! Apparently you can still get them installed in the US They still can meet code! Crazy!

[-] victorz@lemmy.world 1 points 11 months ago

Pretty nice, since concrete is not too good for the environment as far as I've heard.

Building with wood and stone has been good to us for millennia. ๐Ÿ‘Œ

[-] Bitswap@lemmy.world 11 points 11 months ago

Well...except to meet code for wood foundation you must use treated wood (usually treated with some kind of copper arsenic) which is not great for the environment (both the production and usage).

[-] Thrashy@lemmy.world 1 points 11 months ago

Chomated copper arsenate treated wood has been functionally banned in the US since 2003, and replaced with Alkaline copper quaternary or copper azole preservatives, which are generally safe, though I wouldn't go eating off a plate made from them or anything. The bigger issure with wood foundations is that even when treated they're necessarily going to have a limited lifespan -- wood still degrades from groundwater contact over time without insect or fungal attack, and water will wash the preservative agent out of the wood over time, eventually letting fungus and termites in.

[-] victorz@lemmy.world 1 points 11 months ago

Oh really. Well shโ€”

[-] intensely_human@lemm.ee 5 points 11 months ago

Well, so has building with concrete.

[-] victorz@lemmy.world 2 points 11 months ago

Let's define "good", I guess ๐Ÿ˜›

[-] intensely_human@lemm.ee 2 points 11 months ago

Benefitting humans, as a definition.

Concrete lets people build things by moving semiliquid around that hardens.

Reinforced concrete can span big gaps enabling skyscrapers basically, parking garages, structures like that.

[-] Thavron@lemmy.ca 4 points 11 months ago

I'm amazed at the concrete on top of it as well. Normally (in my house) it would be the other way around.

[-] Bitswap@lemmy.world 3 points 11 months ago* (last edited 11 months ago)

The red is fully concrete. That part of the house was an addition.

The black part is entirely a wood foundation. It's the stupidest thing.

Edit: just realized what you were commenting. The image is a top down of the house perimeter.

[-] TrickDacy@lemmy.world 1 points 11 months ago

Exactly! The other way around would've only been done by someone who doesn't understand the concept of rot, afaik

this post was submitted on 11 Jan 2024
37 points (95.1% liked)

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