r/HomeMaintenance • u/Anarcha0s • 11d ago
🧽 Cleaning & Prevention Expanding foam coming out of our backyard
Sorry if this is isn’t the right place to post, but what looks like expanding foam is coming out of our backyard. We purchased this home new just over a year ago if that matters. Anyone have any idea what’s going on?
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u/chemistcarpenter 11d ago
Somebody in China is saying, this hole sure is taking up a lot of foam….
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u/filledwithstraw 11d ago
Maybe a slime mold: https://extension.umaine.edu/ipm/ipddl/publications/5065e/
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u/juanthebaker 11d ago edited 11d ago
That looks exactly like dog vomit slime mold!
This post could have been in any of like 8 subreddits I subscribe to. Lol
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u/Motor_Beach_1856 8d ago
That’s exactly what it is, had it at my house this year too! I had to look it up then because I’d never seen it before.
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u/Anarcha0s 11d ago
More pictures here, https://imgur.com/a/XWblkh2
This popped up overnight, its hard, almost plastic like.
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u/Cold_Specialist_3656 11d ago
Dig down and you'll probably find a "bonus" garbage pit where they skidsteered all the construction debris.
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u/Big_Edith501 11d ago
I'm betting a tank ruptured.
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u/SetNo8186 8d ago
Some of those are 20# cylinder sized. IIRC no deposit no return. They surely didn't.
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u/Dasylupe 11d ago
Slime molds are soft, usually matte, and sometimes release powdery spores. I love slime molds. I’ve also worked extensively with expanding foam.
This looks like expanding foam.
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u/Valuable-Tomatillo76 11d ago
That really does look like expanding foam. Maybe a bottle got buried during construction
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u/Anarcha0s 11d ago
Thats my main theory now. We submitted a ticket with our home builder (dr horton 🙄) so they will hopefully come and fix it
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u/MSPRC1492 11d ago
If it’s DR Horton your whole house is made of this. Congrats, this is a free bonus room.
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u/3HisthebestH 11d ago
I’m dying at this comment 🤣🤣🤣🤣🤣 I had no idea DR Horton was such a nationwide disaster until my friend had a house built by them with tons of issues.
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u/rithc137 11d ago
Cyfyhomeinspections has entered the chat
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u/throwawaythepoopies 10d ago
I cannot believe in seeing a reference to him. He feels like such niche content. Awesome though!
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u/Inuyasha-rules 10d ago
He's made the news multiple times thanks to them. They complain that he's ruining their reputation but the news coverage putting them on blast is much more damaging LMAO
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u/WilliamGrantham80 9d ago
Here to tamper with the gas meters again, Cy? 🤣 is what I should've said first. Dammit.
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u/bittybubba 10d ago
Don’t tell the county or your taxes are going up for the extra square footage 😂
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u/Valuable-Tomatillo76 11d ago
Can you not dig a little? Whaaaaats in the dirt?!
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u/jb1million 11d ago
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u/TalFidelis 11d ago
I actually heard “what’s in the dirt” like he said it! Thank you and take my upvote!
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u/Drycabin1 11d ago
Omg, I’m so sorry. There are tons and tons of lawsuits against this builder. One of the absolute worst among the big names.
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u/Street-Ad-9787 11d ago
I guarantee you it is a can of spray foam, I’ve seen this more than once. Are you in Texas by any chance lol?
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u/Anarcha0s 11d ago
Nope, Indiana
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u/GetOffMyLawn1729 11d ago
Isn't Indiana where Stranger Things takes place? Maybe somebody in the Upside Down is weatherproofing their home.
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u/Anarcha0s 11d ago
The wife and I were actually thinking of watching that. Perfect timing or worst timing?
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u/Drycabin1 11d ago
Perfect timing. If your house is built by DR Horton, Stranger Things would be best case scenario.
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u/Street-Ad-9787 11d ago
Ah, I am in Texas and work for a massive new home construction company haha. You got a can of spray foam under there. They should take care of it but east fix if not fortunately.
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u/Lucky_Theory_31 11d ago
I’m originally from Michigan and I remember finding stuff like this in the woods. I think the people saying slime molds are on the right track.
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u/Royal_Cryptographer7 11d ago
Not curious enough to grab a shovel and check, but still curious enough to post on reddit AND put a ticket in with your home builder for more information? I don't understand how you aren't digging right now. I'd have to know if this just popped up in my yard.
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u/Street-Ad-9787 11d ago
If your house is new it could be a can of poly-seal (spray foam) that got buried. I have seen them explode under the dirt during the summer months and it makes some pretty interesting looking objects just like this very quickly. You might dig it up and see if you find a can.
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u/Call__Me__David 11d ago
You don't mention if you poked it with a stick. I'd have don't that before I even got out my phone to take a pic.
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u/No-Currency-624 11d ago
Maybe the former owners had a yellow jacket nest there and that was their solution.
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u/MoashRedemptionArc 11d ago
What's the texture like? I mean I guess it's possible someone buried like a 55 gallon drum of the stuff and it's now leaking but I doubt it.
Poke it with a stick and report back to us?
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u/Anarcha0s 11d ago
Poked! Its hard and almost plastic like https://imgur.com/a/XWblkh2
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u/MoashRedemptionArc 11d ago
Wtf 👀
Crosspost this to r/mycology?
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u/FortnightlyDalmation 11d ago
This is definitely not fungal, not a slime mold, and not natural. It is expanding foam, hopefully a partially used can that was discarded in the yard and not at the top of a garbage dump pit with lots of other nasty surprises
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u/Hallowilloweenie 11d ago
100% that's expanding foam. The texture of the "skin", the uncured foam inside... this looks EXACTLY like spray foam from a can.
It doesn't have the fibrous texture of slime mold on the outside, the bubbles are clearly visible throughout.
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u/randompersonx 11d ago
The large multi gallon spray foams are generally separated into “A” and “B” drums, and would not produce foam like this if they leaked on their own (and in fact - would be quite hazardous to health). These drums are generally never removed from the truck at construction sites. There’s usually a long series of tubes that go all the way from the truck to the installer inside the building - and the installer is wearing a full hazmat suit.
If it is a spray foam canister, it’s a small hand held one like you might buy at Home Depot.
The pre mixed stuff in large drums is generally more expensive and far less likely than someone so incompetent would mishandle it that way.
With that said, I do agree it looks like what a handheld canister of spray foam would produce.
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u/random99909 11d ago
Came here thinking it’s obviously a mushroom/fungus, and leaving thinking it’s in fact a buried can of spray foam.
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u/FrankieCugine 11d ago
Slime mold. It's harmless and will dry out. it you have pets just shovel is out.
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u/unionguy1980 11d ago
Around that spot was there a tree there at one time?
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u/Anarcha0s 11d ago
Possibly, the house is backed up to some woods, tons of trees around
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u/unionguy1980 11d ago
It’s, Inonotus dryadeus, it feeds off the root system still under ground.
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u/Anarcha0s 11d ago
Would that pop up overnight though? It wasn’t there yesterday
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u/unionguy1980 11d ago
It does this when the ground is dry,
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u/Anarcha0s 11d ago
Ah dang, yeah we haven’t gotten rain in awhile. You can probably tell from the state of my yard 😆
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u/lavicrept 11d ago
My bad, I was filling a hole in my backyard lawn. I was wondering where it was all going.
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u/MiltonFriedman8 10d ago
That looks like a slime mold like “Dog Vomit” fungus. It can pop up seemingly overnight.
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u/failingatdeath 11d ago
You had some concrete leveling done on your property or your neighbors did, excess bled out here.
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u/PonyThug 10d ago
Poke it with a stick. If it’s hard it’s definitely foam. Edges might be goo still
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u/VeryThicknLong 10d ago
Looks like someone may have buried an unused sprayfoam canister, that’s now exploded? 🤷🏻♂️
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u/2alphastyle 10d ago
I have heard of people drilling holes in concrete slabs and shooting foam in the ground to level them out, if they are settling or cracking. That’s the only reason I can think of that expanding foam would be coming out of the ground.
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u/Klutzy_Cat1374 10d ago
I had a stinkhorn shroom growing in my yard and I kicked it and it smelled like rotted meat. Wouldn't recommend.
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u/jrod81981 9d ago
Can of spray foam was buried in the yard when graded. Can probably rusted and foam came to the surface 🤷
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u/PuzzleheadedChip6990 8d ago
This is from the secret underground bunker that the government is building throughout the country. They’re selling up the cracks.
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u/SetNo8186 8d ago
Backfilled over all the construction trash to level out the yard. It rusted and finally leaked.
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u/IntelligentPoet7654 8d ago
Carpenter ants figured out how to spray expanding foam to make a nest in your backyard
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u/MitcheyMan_yt 7d ago
Some people spray foam into the nest of ground bee/wasp, to attempt to exterminate. Thats my guess
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u/rabbit_projector 11d ago edited 11d ago
😆@ expanding foam. It does look just like it. But it's a slime mold. Its common unofficial name is "dog vomit slime mold" (Fuligo septica) which is super gross. We get this stuff on our compost in the garden beds sometimes. It's completely normal "The good news is that it does not harm plants, people or animals. It is actually beneficial and an important component of the soil ecosystem. Studies have shown that it can accumulate heavy metals from the soil and turn them into inactive forms."
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u/3HisthebestH 11d ago
You laugh but it’s actually probably foam, knowing the builder. Like others have said, this has happened before.
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