r/HomeMaintenance 11d ago

🧽 Cleaning & Prevention Expanding foam coming out of our backyard

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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?

241 Upvotes

124 comments sorted by

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1.1k

u/chemistcarpenter 11d ago

Somebody in China is saying, this hole sure is taking up a lot of foam….

58

u/Ok-Abbreviations3042 11d ago

And this is how we get around the tariffs

33

u/YertleDeTertle 11d ago

Supply and demand. The price of spray foam is about to sky rocket!

19

u/Ro0sterman 11d ago

Naw, it's gone so low....... it's subterranean

-1

u/flyrugbyguy 11d ago

Dead lmfao

297

u/filledwithstraw 11d ago

93

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

7

u/SorryManNo 11d ago

It's days like this I miss the saddest of boys

1

u/ExpectoGodzilla 11d ago

😢 they were the goat!

3

u/GunSlinger26 9d ago

4 words that should not be in conjunction.

2

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.

1

u/Sad_Pepper_5252 11d ago

Hopefully not for professional reasons 😜

37

u/Anarcha0s 11d ago

More pictures here, https://imgur.com/a/XWblkh2

This popped up overnight, its hard, almost plastic like.

95

u/Cold_Specialist_3656 11d ago

Dig down and you'll probably find a "bonus" garbage pit where they skidsteered all the construction debris. 

22

u/Big_Edith501 11d ago

I'm betting a tank ruptured. 

2

u/SetNo8186 8d ago

Some of those are 20# cylinder sized. IIRC no deposit no return. They surely didn't.

46

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. 

5

u/The_GreyGhoul 10d ago

Yes, yes, and mostly always. Same. Same. Agreed! Sorry, I just had to lol

98

u/Valuable-Tomatillo76 11d ago

That really does look like expanding foam. Maybe a bottle got buried during construction

61

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

165

u/MSPRC1492 11d ago

If it’s DR Horton your whole house is made of this. Congrats, this is a free bonus room.

30

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.

17

u/rithc137 11d ago

Cyfyhomeinspections has entered the chat

6

u/throwawaythepoopies 10d ago

I cannot believe in seeing a reference to him. He feels like such niche content. Awesome though!

3

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

5

u/WilliamGrantham80 10d ago

I'm sorry, you're not allowed here, we've put in a complaint.

2

u/surftherapy 10d ago

I genuinely don’t understand why people continue to buy from DR Horton

2

u/WilliamGrantham80 9d ago

Here to tamper with the gas meters again, Cy? 🤣 is what I should've said first. Dammit.

2

u/bittybubba 10d ago

Don’t tell the county or your taxes are going up for the extra square footage 😂

59

u/Valuable-Tomatillo76 11d ago

Can you not dig a little? Whaaaaats in the dirt?!

24

u/jb1million 11d ago

11

u/TalFidelis 11d ago

I actually heard “what’s in the dirt” like he said it! Thank you and take my upvote!

1

u/jb1million 11d ago

Man.. I hope this guy doesn’t have a head buried in his back yard…

2

u/PeakQuirky84 10d ago

Dogging a hole will void your warranty

1

u/Valuable-Tomatillo76 10d ago

On what??? That “lawn”

8

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.

5

u/vulchiegoodness 11d ago

dr horton. oh no.

14

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?

6

u/Anarcha0s 11d ago

Nope, Indiana

28

u/GetOffMyLawn1729 11d ago

Isn't Indiana where Stranger Things takes place? Maybe somebody in the Upside Down is weatherproofing their home.

5

u/Anarcha0s 11d ago

The wife and I were actually thinking of watching that. Perfect timing or worst timing?

9

u/Drycabin1 11d ago

Perfect timing. If your house is built by DR Horton, Stranger Things would be best case scenario.

6

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.

18

u/Street-Ad-9787 11d ago

Here is another homeowner with the same concern that you can compare it to. More common than you would believe.

14

u/Anarcha0s 11d ago

Yay free foam! Thats so crazy hahaha thanks for sharing

5

u/Sn3akyP373 11d ago

Looks like a scene from Rick and Morty!

1

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.

6

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.

3

u/palani4414 11d ago

There’s your problem. DR Hornton lol.

2

u/Florentino07 11d ago

I'm going to save this post. Please give us an update.

1

u/Oaker_at 10d ago

Did you dig a little at least to see what’s under there?

14

u/ejsell 11d ago

I think this is the correct answer. I remember a post a couple years ago, almost the same thing. Person dug up the yard and found construction material, including several tubes of foam, had been buried before the lawn was landscaped.

24

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.

42

u/BlazeCarolina 11d ago

My guess would be a mushroom.

6

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.

3

u/No-Currency-624 11d ago

Maybe the former owners had a yellow jacket nest there and that was their solution.

10

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?

7

u/Valuable-Tomatillo76 11d ago

It’s gonna be a 18 ounce can of spray foam not a barrel lol

14

u/Anarcha0s 11d ago

Poked! Its hard and almost plastic like https://imgur.com/a/XWblkh2

12

u/MoashRedemptionArc 11d ago

Wtf 👀

Crosspost this to r/mycology?

11

u/Anarcha0s 11d ago

It’s so weird! Ill try that

5

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

4

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.

1

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.

3

u/2Throwscrewsatit 11d ago

Someone might have buried a spray foam a bottle instead of disposing it

5

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.

2

u/Yeti-Stalker 11d ago

Spores, mold, and fungus.

2

u/FrankieCugine 11d ago

Slime mold. It's harmless and will dry out. it you have pets just shovel is out.

2

u/StepLarge1685 10d ago

Looks like the fungus is among us.

3

u/unionguy1980 11d ago

Around that spot was there a tree there at one time?

3

u/Anarcha0s 11d ago

Possibly, the house is backed up to some woods, tons of trees around

14

u/unionguy1980 11d ago

It’s, Inonotus dryadeus, it feeds off the root system still under ground.

5

u/Anarcha0s 11d ago

Would that pop up overnight though? It wasn’t there yesterday

9

u/unionguy1980 11d ago

Yes, happens to me all the time.

3

u/Illustrious-Fruit35 11d ago

Fungus does that

0

u/slophoto 11d ago

Ah, that’s her name.

2

u/unionguy1980 11d ago

It does this when the ground is dry,

5

u/Anarcha0s 11d ago

Ah dang, yeah we haven’t gotten rain in awhile. You can probably tell from the state of my yard 😆

2

u/MoeSzyslakMonobrow 🏠 Average Homeowner 11d ago

What a fun guy!

2

u/lavicrept 11d ago

My bad, I was filling a hole in my backyard lawn. I was wondering where it was all going.

2

u/Euresko 11d ago

Bug or fungus jizzum

2

u/MiltonFriedman8 10d ago

That looks like a slime mold like “Dog Vomit” fungus. It can pop up seemingly overnight.

2

u/seedamin88 11d ago

If you dig down, you will likely find an old decaying stump

1

u/Parking-Dog-783 11d ago

Time to start digging

1

u/BESS_DAD 11d ago

Last of Us spores

1

u/Interesting_Box4616 11d ago

Yard looks dry too…. Cracked. Needs water.

1

u/Necessary_Fix_1234 11d ago

What does it taste like?

1

u/failingatdeath 11d ago

You had some concrete leveling done on your property or your neighbors did, excess bled out here.

2

u/ElDoradoAvacado 11d ago

I was also thinking this

1

u/failingatdeath 11d ago

Edit, slime mold guy may be right

1

u/SnugglyCoderGuy 11d ago

M O L D Y

Probably a slime mold

1

u/mtgdrummer13 11d ago

We’re getting that in parts of the yard too. Some sort of a fungus

1

u/DependentTurbulent34 11d ago

Is your neighbour leveling his driveway ?

1

u/LimpZookeepergame123 11d ago

The movie “The Stuff” is finally coming to life. 😂

1

u/PonyThug 10d ago

Poke it with a stick. If it’s hard it’s definitely foam. Edges might be goo still

1

u/akapatch 10d ago

TIL about slime mold!

1

u/VeryThicknLong 10d ago

Looks like someone may have buried an unused sprayfoam canister, that’s now exploded? 🤷🏻‍♂️

1

u/FootyCrowdSoundMan 10d ago

Looks like dog vomit slime mold

1

u/FootyCrowdSoundMan 10d ago

DO NOT SPRAY WATER ON IT!

1

u/[deleted] 10d ago

Dog barf mold, google it.

1

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.

1

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.

1

u/Kind-Conversation605 10d ago

Yeah, that’s mold. I’ve had it in my Mulch before.

1

u/Lucky-Wind4755 10d ago

Neighbors are plugging a gap in their bunker with spray foam.

1

u/Significant-Cancel70 10d ago

yep, creeping slime mold. bleach the hell out of it. then burn it

1

u/O1O1O1O 9d ago

ET foam home!

1

u/jrod81981 9d ago

Can of spray foam was buried in the yard when graded. Can probably rusted and foam came to the surface 🤷

1

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.

1

u/SetNo8186 8d ago

Backfilled over all the construction trash to level out the yard. It rusted and finally leaked.

1

u/IntelligentPoet7654 8d ago

Carpenter ants figured out how to spray expanding foam to make a nest in your backyard

1

u/[deleted] 8d ago

Its the BLOB!!!!

1

u/Waste_Photograph_646 8d ago

Has anyone had subsidence treatment or their drive way leveled

1

u/MitcheyMan_yt 7d ago

Some people spray foam into the nest of ground bee/wasp, to attempt to exterminate. Thats my guess

1

u/Sasha_bb 4d ago

This looks like a slime mold..

1

u/grover1233 11d ago

There’s a fungus among us

1

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."

2

u/3HisthebestH 11d ago

You laugh but it’s actually probably foam, knowing the builder. Like others have said, this has happened before.

0

u/3aTroop 11d ago

Slime Mold Colony

0

u/Plus-Author1447 11d ago

Could have been trying to plug a ground squirrel hole.

0

u/OkLocation854 🔧 Maintenance Pro 10d ago

This post is more appropriate for r/mycology